jython-bugs — Private bug notification list. Do not post to this list.

[Jython-bugs] [issue2938] import MessageSource does not work anymore with jython2.7.2

[Juniarti S. <re...@bu...>]

New submission from Juniarti Suryakusuma <jas...@us...>:

Hi,
My script that import MessageSource does not work anymore when I use jython2.7.2.
Can you please help me what should I use now?
Thank you.

----------
components: Library
messages: 13242
nosy: juniarti
severity: normal
status: open
title: import MessageSource does not work anymore with jython2.7.2
versions: Jython 2.7.2

_______________________________________
Jython tracker <re...@bu...>
<https://bugs.jython.org/issue2938>
_______________________________________

[Jython-bugs] [issue2936] can't use SO_EXCLUSIVEADDRUSE in jython2.7.2

[Juniarti S. <re...@bu...>]

New submission from Juniarti Suryakusuma <jas...@us...>:

Hi,
My script does not work anymore when I upgraded to jython2.7.2 as SO_EXCLUSIVEADDRUSE is not available in jython2.7.2
Can you please help what can I use now with jython2.7.2?
Thank you.

----------
components: Library
messages: 13240
nosy: juniarti
severity: normal
status: open
title: can't use SO_EXCLUSIVEADDRUSE in jython2.7.2
versions: Jython 2.7.2

_______________________________________
Jython tracker <re...@bu...>
<https://bugs.jython.org/issue2936>
_______________________________________

[Jython-bugs] [issue2934] Filereader.read: TypeError: read(): 1st arg can't be coerced to java.nio.CharBuffer, char[]

[Peter Wu <re...@bu...>]

Change by Peter Wu <wu...@gm...>:


----------
components: Core
nosy: wupz
severity: normal
status: open
title: Filereader.read: TypeError: read(): 1st arg can't be coerced to java.nio.CharBuffer, char[]
versions: Jython 2.7.3

_______________________________________
Jython tracker <re...@bu...>
<https://bugs.jython.org/issue2934>
_______________________________________

[Jython-bugs] What jython release that has the fix for cve-2018-20060

[Juniarti A S. <jas...@us...>]

[Jython-bugs] How do I find out what urllib3 version that is used in jython2.7

[Juniarti A S. <jas...@us...>]

I am trying to figure out if the jython version that we are using has the fix for this CVE-2018-20060 or not.
How do I find out what urllib3 version that comes with jython2.7?
Thanks,
Juni.

[Jython-bugs] [issue2932] Complete your registration to Jython tracker

[Juniarti S. <re...@bu...>]

New submission from Juniarti Suryakusuma <jas...@us...>:

Hi,
Everytime I click on the link and try to login I got this error below:
broken form: multiple @action values submitted
________________________________
From: report=bug...@ro... <report=bug...@ro...> on behalf of Jython tracker <re...@bu...>
Sent: Thursday, October 6, 2022 2:28 PM
To: Juniarti A Suryakusuma <jas...@us...>
Subject: [EXTERNAL] Complete your registration to Jython tracker

To complete your registration of the user "juniarti" with
Jython tracker, please visit the following URL:

https://bugs.jython.org/?@action=confrego&otk=A38yhMX8CvMFkkImt7sGMXuKFcy1R5UH

----------
files: unnamed
messages: 13236
nosy: juniarti
severity: normal
status: open
title: Complete your registration to Jython tracker
Added file: https://bugs.jython.org/file1697/unnamed

_______________________________________
Jython tracker <re...@bu...>
<https://bugs.jython.org/issue2932>
_______________________________________

[Jython-bugs] [issue2930] Cannot run Numpy example with JyNI

[Daniel A. <re...@bu...>]

New submission from Daniel Alievsky <da...@is...>:

Hello! I tried to run Numpy with Jython via JyNI, as described in a paper https://arxiv.org/pdf/1607.00825v1.pdf

1) I copied Numpy package from separately installed Anaconda-2 into C:\jython2.7.2\Lib\site-packages\, due to a problem with installing Numpy by Jython pip (see https://bugs.jython.org/issue2928 )

2) I unpacked DemoExtension.pyd and python27.dll from JyNI archive into C:\JyNI folder.

3) I tried to run a very simple code:
import sys
sys.path.append('c:/JyNI')
import numpy as np
(as written in PDF-file).

Results:
Traceback (most recent call last):
  File "C:/siams/computer-vision/stare-python/jython-experiments/net/algart/jython/tests/SimpleJythonNumpyTest.py", line 3, in <module>
    import numpy as np
  File "C:\jython2.7.2\Lib\site-packages\numpy\__init__.py", line 142, in <module>
    from . import core
  File "C:\jython2.7.2\Lib\site-packages\numpy\core\__init__.py", line 71, in <module>
    raise ImportError(msg)
ImportError: 

IMPORTANT: PLEASE READ THIS FOR ADVICE ON HOW TO SOLVE THIS ISSUE!

Importing the multiarray numpy extension module failed.  Most
likely you are trying to import a failed build of numpy.
Here is how to proceed:
- If you're working with a numpy git repository, try `git clean -xdf`
  (removes all files not under version control) and rebuild numpy.
- If you are simply trying to use the numpy version that you have installed:
  your installation is broken - please reinstall numpy.
- If you have already reinstalled and that did not fix the problem, then:
  1. Check that you are using the Python you expect (you're using C:\jython2.7.2\bin\jython.exe),
     and that you have no directories in your PATH or PYTHONPATH that can
     interfere with the Python and numpy versions you're trying to use.
  2. If (1) looks fine, you can open a new issue at
     https://github.com/numpy/numpy/issues.  Please include details on:
     - how you installed Python
     - how you installed numpy
     - your operating system
     - whether or not you have multiple versions of Python installed
     - if you built from source, your compiler versions and ideally a build log

     Note: this error has many possible causes, so please don't comment on
     an existing issue about this - open a new one instead.

Original error was: No module named _multiarray_umath

What does go wrong here? Is it a problem of using module "numpy" from Anaconda (instead of normal installing with pip), or is it a problem if using JyNI?

----------
components: Library
messages: 13208
nosy: Daniel
severity: normal
status: open
title: Cannot run Numpy example with JyNI
versions: Jython 2.7.2

_______________________________________
Jython tracker <re...@bu...>
<https://bugs.jython.org/issue2930>
_______________________________________

[Jython-bugs] [issue2928] Cannot install packages in Jython (Windows)

[Daniel <re...@bu...>]

New submission from Daniel <da...@is...>:

Hello!
I've installed the latest available version Jython 2.7.2 from https://www.jython.org/download
I need to install there some packages, like numpy. But simple command 
C:\jython2.7.2\bin>pip install numpy
shows a lot of certificate errors like this:
ERROR: Certificate did not match expected hostname: pypi.org...

Ok, I've found workaround in internet:
C:\jython2.7.2\bin>pip install -v --trusted-host pypi.org --trusted-host files.pythonhosted.org numpy
But even this variant does not work:
...
  Could not fetch URL https://pypi.org/simple/numpy/: 403 Client Error: SNI is required for url: https://pypi.org/simple/numpy/ - skipping
  ERROR: Could not find a version that satisfies the requirement numpy (from versions: none)
...
ERROR: No matching distribution found for numpy

What is the reason? How to correctly install numpy, opencv-python and other packages into Jython?

----------
components: Installer
messages: 13188
nosy: Daniel
severity: normal
status: open
title: Cannot install packages in Jython (Windows)
type: behaviour
versions: Jython 2.7.2

_______________________________________
Jython tracker <re...@bu...>
<https://bugs.jython.org/issue2928>
_______________________________________

[Jython-bugs] [issue2924] module-info.class in root of jython-standalone-2.7.2.jar causes problems

[Pekka K. <re...@bu...>]

New submission from Pekka Klärck <pe...@ik...>:

When trying to extend jython-standalone-2.7.2.jar using the `jar` command I get this error:

    jar: Package org.objectweb.asm.signature missing from ModulePackages class file attribute

It seems that the problem is caused by module-info.class file at the root of the jython-standalone-2.7.2.jar. It doesn't exist in jython-standalone-2.7.1.jar and with it I get no problems. Removing the file also fixes the problem with 2.7.2.

This seems to be dependent on Java version, environment or something similar. I'm not the only one in our project who has encountered this problem, but there are also others who aren't affected. For more details about our exact case see:
https://github.com/robotframework/robotframework/issues/3780

It's easy for us to remove the problematic module-info.class file when building our jar package. I hope someone from the Jython project could comment is doing that safe.

----------
messages: 13180
nosy: pekka.klarck
severity: normal
status: open
title: module-info.class in root of jython-standalone-2.7.2.jar causes problems

_______________________________________
Jython tracker <re...@bu...>
<https://bugs.jython.org/issue2924>
_______________________________________

[Jython-bugs] [issue2920] Exception thrown creating jar file.

[Molnar <re...@bu...>]

New submission from Molnar <mol...@gm...>:

Running on Mac OS X 10.15.7. Creating a standalone jar file. 

➜ ~ /usr/bin/java -jar Downloads/jython-installer-2.7.2.jar 
Exception in thread "Thread-4" org.python.util.install.InstallerException: Error accessing jar file
	at org.python.util.install.JarInstaller.inflate(JarInstaller.java:177)
	at org.python.util.install.ProgressPage.activate(ProgressPage.java:84)
	at org.python.util.install.AbstractWizardPage.doActivate(AbstractWizardPage.java:41)
	at org.python.util.install.AbstractWizard.showActivePage(AbstractWizard.java:414)
	at org.python.util.install.AbstractWizard.next(AbstractWizard.java:319)
	at org.python.util.install.AbstractWizard.gotoNextPage(AbstractWizard.java:215)
	at org.python.util.install.AbstractWizardValidator.fireValidationSucceeded(AbstractWizardValidator.java:78)
	at org.python.util.install.AbstractWizardValidator.access$100(AbstractWizardValidator.java:6)
	at org.python.util.install.AbstractWizardValidator$ValidatorThread.run(AbstractWizardValidator.java:16)
Caused by: java.util.zip.ZipException: duplicate entry: module-info.class
	at java.util.zip.ZipOutputStream.putNextEntry(ZipOutputStream.java:232)
	at java.util.jar.JarOutputStream.putNextEntry(JarOutputStream.java:109)
	at org.python.util.install.StandalonePackager.addJarFile(StandalonePackager.java:92)
	at org.python.util.install.JarInstaller.inflate(JarInstaller.java:163)
	... 8 more

➜  ~ /usr/bin/java -version
java version "1.8.0_181"
Java(TM) SE Runtime Environment (build 1.8.0_181-b13)
Java HotSpot(TM) 64-Bit Server VM (build 25.181-b13, mixed mode)

----------
components: Installer
messages: 13172
nosy: molnar20
severity: normal
status: open
title: Exception thrown creating jar file.
type: crash
versions: Jython 2.7.2

_______________________________________
Jython tracker <re...@bu...>
<https://bugs.jython.org/issue2920>
_______________________________________

[Jython-bugs] [issue2918] slim jar: missing resource file for zxJDBC

[Raimund H. <re...@bu...>]

New submission from Raimund Hocke <rmh...@me...>:

The normal jar has in com.ziclix.python.sql a folder resource containing the file zxJDBCMessages.properties.
This folder is missing in the slim jar and makes the Jython interpreter crash when trying to import zxJDBC (Java class init error:java.lang.RuntimeException: missing zxjdbc resource bundle)

----------
components: Library, zxjdbc
messages: 13158
nosy: RaiManSikuliX
severity: normal
status: open
title: slim jar: missing resource file for zxJDBC
type: crash
versions: Jython 2.7.2

_______________________________________
Jython tracker <re...@bu...>
<https://bugs.jython.org/issue2918>
_______________________________________

[Jython-bugs] [issue2916] Saving output of script which has korean string to a file

[Mithun <re...@bu...>]

New submission from Mithun <mit...@gm...>:

My Java code : 

PythonInterpreter interp = new PythonInterpreter() {
    {
        cflags = new CompilerFlags(CompilerFlags.PyCF_SOURCE_IS_UTF8);
    }
};
String outputPath = "C:\\views\\mithun.txt";
interp.setOut(new PrintWriter(new OutputStreamWriter(new FileOutputStream(outputPath), "UTF-8")));
String execScript = "abc = '헬로우'\r\n" + 		  		
					"print \"Printing Korean : \", abc";
interp.exec(execScript);

Doesnt pring the Koren characters correctly.

----------
components: Any
files: korean_error.PNG
messages: 13152
nosy: mithunairani
severity: normal
status: open
title: Saving output of script which has korean string to a file
type: behaviour
versions: Jython 2.7.2
Added file: https://bugs.jython.org/file1693/korean_error.PNG

_______________________________________
Jython tracker <re...@bu...>
<https://bugs.jython.org/issue2916>
_______________________________________

[Jython-bugs] [issue2904] best seo companies in bangalore

[digimark <re...@bu...>]

New submission from digimark <dig...@gm...>:

Digimark is the best SEO Company and SEO experts in Bangalore. As a top SEO agency, We offer the best SEO Services in Bangalore to help all types of business. https://digimarkagency.com/seo-company-bangalore.html

----------
messages: 13132
nosy: digimark
severity: normal
status: open
title: best seo companies in bangalore

_______________________________________
Jython tracker <re...@bu...>
<https://bugs.jython.org/issue2904>
_______________________________________

[Jython-bugs] [issue2900] poll + POLLHUP causes AttributeError: 'SSLSocket' object has no attribute 'channel'

[Shane H. <re...@bu...>]

New submission from Shane Harvey <sh...@gm...>:

Calling poll() on a SSLSocket registered with POLLHUP causes the following AttributeError: 'SSLSocket' object has no attribute 'channel'

  File "pymongo/socket_checker.py", line 57, in select
    res = self._poller.poll(timeout * 1000)
  File "/usr/local/Cellar/jython/2.7.2/libexec/Lib/_socket.py", line 592, in poll
    result = self._handle_poll(partial(self.queue.poll, timeout_in_ns, TimeUnit.NANOSECONDS))
  File "/usr/local/Cellar/jython/2.7.2/libexec/Lib/_socket.py", line 541, in _event_test
    fd, event = self._event_test(notification)
  File "/usr/local/Cellar/jython/2.7.2/libexec/Lib/_socket.py", line 541, in _event_test
    if mask & POLLHUP and (notification.hangup or not notification.sock.channel):
AttributeError: 'SSLSocket' object has no attribute 'channel'

I can reproduce this bug with Jython 2.7.0+2.7.1+2.7.2.

----------
messages: 13106
nosy: shane
severity: normal
status: open
title: poll + POLLHUP causes AttributeError: 'SSLSocket' object has no attribute 'channel'
versions: Jython 2.7, Jython 2.7.1, Jython 2.7.2

_______________________________________
Jython tracker <re...@bu...>
<https://bugs.jython.org/issue2900>
_______________________________________

[Jython-bugs] [issue2898] Fix serialization format

[doublep <re...@bu...>]

New submission from doublep <pog...@gm...>:

Recently our application upgraded from Jython 2.5 to 2.7.2. As a side effect, all previously stored serialization representations (e.g. of PyList) became unreadable. This is caused by internal change in representation of various Jython objects. Note that using 'pickle' in our case is not an option, because we are serializing Java objects that _sometimes_ also include Jython objects, but Jython is not the main target.

However, additionally Jython classes lack 'serialVersionUID' field. Which means that even changes that are serialization-compatible in principle could lead to accidental change of autocomputed UID value and thus break unserialization of older representations.

Please add 'serialVersionUID' to serializable classes (initializing it to the current autocomputed value). Also, please weigh serialization compatibility against other reasons if considering changing internal object structure again.

----------
components: Core
messages: 13098
nosy: doublep
severity: normal
status: open
title: Fix serialization format
versions: Jython 2.7.2

_______________________________________
Jython tracker <re...@bu...>
<https://bugs.jython.org/issue2898>
_______________________________________

[Jython-bugs] [issue2896] Jython's logger is split from everything else without good reason

[doublep <re...@bu...>]

New submission from doublep <pog...@gm...>:

Jython's command line program uses its own loggers that is separated from normal logging output.  I.e. in file 'org/python/util/jython.java' there is this comment and corresponding code to do what it describes:

    // Make our "org.python" logger do its own output and not propagate to root.

For me, this defeats the whole point of logging: have an overview of what various parts of the application do, and how they do this together (so that I don't have to search for correspondences in timestamps in 10 different output files).

Please either make Jython logging completely like everything else or at least make this configurable so that I can e.g. just set something in environment.

----------
components: Core
messages: 13072
nosy: doublep
severity: normal
status: open
title: Jython's logger is split from everything else without good reason
type: behaviour
versions: Jython 2.7.2

_______________________________________
Jython tracker <re...@bu...>
<https://bugs.jython.org/issue2896>
_______________________________________

[Jython-bugs] [issue2894] urllib2 POST > 64k fails

[Gunter <re...@bu...>]

New submission from Gunter <gu...@ba...>:

When urllib2-POSTing data > 64k the request times out and returns:

httplib.BadStatusLine: ''

<= 64k works fine.

Tested in newest (2.7.2 and 2.7.2b3, 2.7.2b2).

----------
files: post64k.py
messages: 13064
nosy: gbach
severity: major
status: open
title: urllib2 POST > 64k fails
type: crash
versions: Jython 2.7.2
Added file: https://bugs.jython.org/file1689/post64k.py

_______________________________________
Jython tracker <re...@bu...>
<https://bugs.jython.org/issue2894>
_______________________________________

[Jython-bugs] [issue2892] Migrate from hg.python.org to GitHub

[Jeff A. <re...@bu...>]

New submission from Jeff Allen <ja...@fa...>:

As in PEP-512 (https://www.python.org/dev/peps/pep-0512/) and for much the same reasons, we've said we'd migrate to GitHub. This seems the apposite time, before we get started on bug-fixes and Jython 3. This implicitly includes using git rather than mercurial in the development environment.

I'm tentatively assigning myself the ticket. I have a bit of experience now with git, so can probably manage this without making too much of a mess. The main difficulty is to avoid something that works but has some fearful drawback later on. I'll dry run it in my own space first, fix a bug in the dry, then repeat for real. If anyone knows a lot about this, help would be welcome.

Fortunately, CPython have done this before us. (And lots of others, but they're nearest, and in public.) Discussion on the core-workflow list begins around the start of 2016.
https://mail.python.org/archives/list/cor...@py.../2016/1/
This is something like the final plan:
https://mail.python.org/archives/list/cor...@py.../thread/NZDI44KRG7NUYI2PDHPDW6ZXQTAJZ7P7/


We shouldn't expect to get the same tool integration as CPython (e.g. updating bugs.jython.org with changes on GitHub). We'd have easier use of tools supporting the development process if we were in the Python organisation, from GitHub's POV. If we can work as well as now, haven't dropped any critical information, and can merge PRs via GitHub, I would count that a success.

There will be several details to take care of, some general to Python, some specific to Jython. I doubt I will spot them all first time. Here's a start ...


In the generic category:

* Converting the repo (history, contributor names etc.): https://mail.python.org/archives/list/cor...@py.../thread/KXSKDHUOSGX6WSSH54I7HIH33SDLYBIW/

* Contributor names: 

* sys._git: https://bugs.python.org/issue27593

* git and new lines: https://bugs.python.org/issue27425


Specific to Jython:

* Continue building with ant, with minimal change, but using git in place of (i.e. no longer supporting) hg to get version control information. (git must be available on the path or you get an uncontrolled snapshot of some kind.)

* Have concurrent branches like CPython and the dev-guide. (We haven't really done that, but need to, in a small way.)

----------
assignee: jeff.allen
components: Any
messages: 13062
milestone: Jython 2.7.3
nosy: jeff.allen
priority: high
severity: normal
status: open
title: Migrate from hg.python.org to GitHub
type: rfe
versions: Jython 2.7.3

_______________________________________
Jython tracker <re...@bu...>
<https://bugs.jython.org/issue2892>
_______________________________________

[Jython-bugs] [issue2890] Jython fails to install and run in Win 10 Pro

[Sherif <re...@bu...>]

New submission from Sherif <ser...@gm...>:

I have tried to install in Win10 Pro with different Java versions:

jre-8u241-windows-i586.exe
jre-8u241-windows-x64.exe
jre-8u251-windows-i586.exe
jre-8u251-windows-x64.exe
jre-8u181-windows-i586.exe
jre-8u181-windows-x64.exe

PC: Intel i7-700, 2.80 Ghz, x64 bit CPU

C:\Jython>java -jar jython-installer-2.7.2.jar
Exception in thread "main" java.lang.ExceptionInInitializerError
        at org.python.core.PySystemState.<clinit>(PySystemState.java:73)
        at org.python.util.jython.main(jython.java:533)
Caused by: java.lang.IllegalArgumentException: Cannot create PyString with non-byte value
        at org.python.core.PyString.<init>(PyString.java:57)
        at org.python.core.PyString.<init>(PyString.java:70)
        at org.python.core.PyString.<init>(PyString.java:74)
        at org.python.core.Py.newString(Py.java:643)
        at org.python.core.PyJavaType.init(PyJavaType.java:543)
        at org.python.core.PyType$Registry.createType(PyType.java:477)
        at org.python.core.PyType$Registry.addFromClass(PyType.java:426)
        at org.python.core.PyType$Registry.resolveType(PyType.java:352)
        at org.python.core.PyType$Registry$1.computeValue(PyType.java:208)
        at org.python.core.PyType$Registry$1.computeValue(PyType.java:202)
        at java.lang.ClassValue.getFromHashMap(Unknown Source)
        at java.lang.ClassValue.getFromBackup(Unknown Source)
        at java.lang.ClassValue.get(Unknown Source)
        at org.python.core.PyType.fromClass(PyType.java:2137)
        at org.python.core.PyObject.<init>(PyObject.java:85)
        at org.python.core.PySingleton.<init>(PySingleton.java:9)
        at org.python.core.PyNotImplemented.<init>(PyNotImplemented.java:10)
        at org.python.core.Py.<clinit>(Py.java:66)
        ... 2 more


Could you please assist? Is this already fixed?

It works fine on Win 10 Enterprise.

Best regards,
Sherif

----------
components: Core, Installer
messages: 13056
nosy: sherif
severity: normal
status: open
title: Jython fails to install and run in Win 10 Pro
type: crash
versions: Jython 2.7.2

_______________________________________
Jython tracker <re...@bu...>
<https://bugs.jython.org/issue2890>
_______________________________________

[Jython-bugs] [issue2888] -Q new always fails

[han <re...@bu...>]

New submission from han <han...@gm...>:

When running jython with -Qnew, it always errors out.

Looks like there should be a break after new in the switch case to prevent the -Q option from falling through to the default failure

----------
components: Core
messages: 13050
nosy: hansiang93
severity: major
status: open
title: -Q new always fails
type: crash
versions: Jython 2.7.1, Jython 2.7.2

_______________________________________
Jython tracker <re...@bu...>
<https://bugs.jython.org/issue2888>
_______________________________________

[Jython-bugs] [issue2886] -Qnew results in jython failing

[han <re...@bu...>]

Change by han <han...@gm...>:


----------
nosy: hansiang93
severity: major
status: open
title: -Qnew results in jython failing
type: crash
versions: Jython 2.7.2

_______________________________________
Jython tracker <re...@bu...>
<https://bugs.jython.org/issue2886>
_______________________________________

[Jython-bugs] [issue2884] Issue with unicode_escape blocks use of future

[Stefan R. <re...@bu...>]

New submission from Stefan Richthofer <ste...@jy...>:

I tried a lib that makes some use of the future module. It failed on these lines:
from future import standard_library
standard_library.install_aliases()

I quickly identified the cause is in this line in future.utils.surrogateescape.py: encoded = u('[abc\udcff]')
u is a function in surrogateescape.py

Anyway. The actual cause can be easily written as this line:

'[abc\udcff]'.decode('unicode_escape')

Execute this line directly in Jython 2.7.2 or CPython 2.7 to reproduce. (It works e.g. in CPython 2.7.12) This reproduces the issue independently from future. In Jython you will get the following error:

UnicodeDecodeError: 'unicodeescape' codec can't decode bytes in position 4-10: illegal Unicode character

----------
components: Core
messages: 13040
nosy: stefan.richthofer
priority: normal
severity: normal
status: open
title: Issue with unicode_escape blocks use of future
type: behaviour
versions: Jython 2.7.2

_______________________________________
Jython tracker <re...@bu...>
<https://bugs.jython.org/issue2884>
_______________________________________

[Jython-bugs] [issue2882] A cmd.exe in the CWD will be executed unexpectedly

[Jeff A. <re...@bu...>]

New submission from Jeff Allen <ja...@fa...>:

It is identified in https://github.com/NationalSecurityAgency/ghidra/issues/107 that we call "cmd.exe" without specifying the exact path, and that in the event a cmd.exe exists in the working directory, that will be run instead. This can be a trip hazard when working with dangerous material.

PySystemState is blamed in the reference, but a search shows that we mention cmd.exe in the posix module too. And there we should consider removing command.com too :)

Almost certainly, the right answer is to use COMSPEC to find it, compare the  standard library subprocess.py . In CPython that falls back to "cmd.exe" if COMSPEC is not defined. In Jython it uses the list ultimately defined in enum OS .

----------
keywords: easy
messages: 13036
milestone: Jython 2.7.3
nosy: jeff.allen
priority: normal
severity: normal
status: open
title: A cmd.exe in the CWD will be executed unexpectedly
type: security
versions: Jython 2.7.1, Jython 2.7.2

_______________________________________
Jython tracker <re...@bu...>
<https://bugs.jython.org/issue2882>
_______________________________________

[Jython-bugs] [issue2880] JVM hangs on PyType.createType method

[Zaid S. <re...@bu...>]

New submission from Zaid Sultan <zs...@et...>:

Runnable thread hangs forever on java.lang.Class.forName0(Native Method) which is called from PyType.fromClass method which is static synchronized, which in turn blocks all other threads that are trying to obtain the lock on this class. Do you think this is a JVM issue or a Jython issue? Attached the whole stack trace.

The issue happens sporadically. 
My JVM version is:
Java HotSpot(TM) 64-Bit Server VM version 25.66-b18 (Java version 1.8.0_66-b18)

My OS is:
Windows Server 2012 R2 6.3

----------
components: Core
files: stackTrace.txt
messages: 13032
nosy: zsultan
severity: major
status: open
title: JVM hangs on PyType.createType method
versions: Jython 2.7
Added file: https://bugs.jython.org/file1685/stackTrace.txt

_______________________________________
Jython tracker <re...@bu...>
<https://bugs.jython.org/issue2880>
_______________________________________

[Jython-bugs] [issue2878] java.lang.OutOfMemoryError: Java heap space

[wang <re...@bu...>]

New submission from wang <hao...@16...>:

C:\Users\86176>jython -m pip install -i https://pypi.tuna.tsinghua.edu.cn/simple synonyms
DEPRECATION: A future version of pip will drop support for Python 2.7.
Looking in indexes: https://pypi.tuna.tsinghua.edu.cn/simple
Collecting synonyms
[?25l  Downloading https://pypi.tuna.tsinghua.edu.cn/packages/3e/47/065b8f34aad7bbf34447df72e4188a5ac6ae7106af5e2f91f5a0ed33f4e0/synonyms-3.10.2.tar.gz (54.5MB)
     |████████████████████████████████| 54.5MB 487kB/s eta 0:00:01D:\learn\jython2.7.2\Lib\_io.py:334: RuntimeWarning: PyTableCode.call caught a Throwable that is not an Exception:
java.lang.OutOfMemoryError: Java heap space
Jython internals might be in a bad state now that can cause deadlocks later on.
See http://bugs.jython.org/issue2536 for details.
  return bytes(self._buffer)
WARNING: You are using pip version 19.1, however version 20.0.2 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.
Traceback (most recent call last):
  File "D:\learn\jython2.7.2\Lib\runpy.py", line 161, in _run_module_as_main
    return _run_code(code, main_globals, None,
  File "D:\learn\jython2.7.2\Lib\runpy.py", line 72, in _run_code
    exec code in run_globals
  File "D:\learn\jython2.7.2\Lib\site-packages\pip\__main__.py", line 19, in <module>
    sys.exit(_main())
  File "D:\learn\jython2.7.2\Lib\site-packages\pip\_internal\__init__.py", line 78, in main
    return command.main(cmd_args)
  File "D:\learn\jython2.7.2\Lib\site-packages\pip\_internal\cli\base_command.py", line 178, in main
    status = self.run(options, args)
  File "D:\learn\jython2.7.2\Lib\site-packages\pip\_internal\cli\base_command.py", line 178, in main
    status = self.run(options, args)
  File "D:\learn\jython2.7.2\Lib\site-packages\pip\_internal\commands\install.py", line 352, in run
    resolver.resolve(requirement_set)
  File "D:\learn\jython2.7.2\Lib\site-packages\pip\_internal\commands\install.py", line 352, in run
    resolver.resolve(requirement_set)
  File "D:\learn\jython2.7.2\Lib\site-packages\pip\_internal\resolve.py", line 130, in resolve
    discovered_reqs.extend(
  File "D:\learn\jython2.7.2\Lib\site-packages\pip\_internal\resolve.py", line 130, in resolve
    discovered_reqs.extend(
  File "D:\learn\jython2.7.2\Lib\site-packages\pip\_internal\resolve.py", line 294, in _resolve_one
    abstract_dist = self._get_abstract_dist_for(req_to_install)
  File "D:\learn\jython2.7.2\Lib\site-packages\pip\_internal\resolve.py", line 240, in _get_abstract_dist_for
    abstract_dist = self.preparer.prepare_linked_requirement(
  File "D:\learn\jython2.7.2\Lib\site-packages\pip\_internal\operations\prepare.py", line 349, in prepare_linked_requirement
    unpack_url(
  File "D:\learn\jython2.7.2\Lib\site-packages\pip\_internal\operations\prepare.py", line 349, in prepare_linked_requirement
    unpack_url(
  File "D:\learn\jython2.7.2\Lib\site-packages\pip\_internal\download.py", line 880, in unpack_url
    unpack_http_url(
  File "D:\learn\jython2.7.2\Lib\site-packages\pip\_internal\download.py", line 742, in unpack_http_url
    from_path, content_type = _download_http_url(link,
  File "D:\learn\jython2.7.2\Lib\site-packages\pip\_internal\download.py", line 954, in _download_http_url
    _download_url(resp, link, content_file, hashes, progress_bar)
  File "D:\learn\jython2.7.2\Lib\site-packages\pip\_internal\download.py", line 683, in _download_url
    hashes.check_against_chunks(downloaded_chunks)
  File "D:\learn\jython2.7.2\Lib\site-packages\pip\_internal\utils\hashes.py", line 62, in check_against_chunks
    for chunk in chunks:
  File "D:\learn\jython2.7.2\Lib\site-packages\pip\_internal\download.py", line 651, in written_chunks
    for chunk in chunks:
  File "D:\learn\jython2.7.2\Lib\site-packages\pip\_internal\utils\ui.py", line 156, in iter
    for x in it:
  File "D:\learn\jython2.7.2\Lib\site-packages\pip\_internal\download.py", line 616, in resp_read
    for chunk in resp.raw.stream(
  File "D:\learn\jython2.7.2\Lib\site-packages\pip\_internal\download.py", line 616, in resp_read
    for chunk in resp.raw.stream(
  File "D:\learn\jython2.7.2\Lib\site-packages\pip\_vendor\urllib3\response.py", line 494, in stream
    data = self.read(amt=amt, decode_content=decode_content)
  File "D:\learn\jython2.7.2\Lib\site-packages\pip\_vendor\urllib3\response.py", line 442, in read
    data = self._fp.read(amt)
  File "D:\learn\jython2.7.2\Lib\site-packages\pip\_vendor\cachecontrol\filewrapper.py", line 65, in read
    self._close()
  File "D:\learn\jython2.7.2\Lib\site-packages\pip\_vendor\cachecontrol\filewrapper.py", line 52, in _close
    self.__callback(self.__buf.getvalue())
  File "D:\learn\jython2.7.2\Lib\site-packages\pip\_vendor\cachecontrol\controller.py", line 299, in cache_response
    self.cache.set(
  File "D:\learn\jython2.7.2\Lib\site-packages\pip\_vendor\cachecontrol\serialize.py", line 72, in dumps
    return b",".join([b"cc=4", msgpack.dumps(data, use_bin_type=True)])
  File "D:\learn\jython2.7.2\Lib\site-packages\pip\_vendor\msgpack\__init__.py", line 47, in packb
    return Packer(**kwargs).pack(o)
  File "D:\learn\jython2.7.2\Lib\site-packages\pip\_vendor\msgpack\fallback.py", line 858, in pack
    ret = self._buffer.getvalue()
  File "D:\learn\jython2.7.2\Lib\_io.py", line 334, in getvalue
    return bytes(self._buffer)
java.lang.OutOfMemoryError: Java heap space
        at org.python.core.BaseBytes.asString(BaseBytes.java:1121)
        at org.python.core.PyByteArray.bytearray_str(PyByteArray.java:2018)
        at org.python.core.PyByteArray.__str__(PyByteArray.java:2013)
        at org.python.core.PyString.str_new(PyString.java:172)
        at org.python.core.PyString$exposed___new__.new_impl(Unknown Source)
        at org.python.core.PyType.invokeNew(PyType.java:1119)
        at org.python.core.PyType.type___call__(PyType.java:2399)
        at org.python.core.PyType.__call__(PyType.java:2389)
        at org.python.core.PyObject.__call__(PyObject.java:461)
        at org.python.core.PyObject.__call__(PyObject.java:465)
        at _io$py.getvalue$32(D:/learn/jython2.7.2/Lib/_io.py:334)
        at _io$py.call_function(D:/learn/jython2.7.2/Lib/_io.py)
        at org.python.core.PyTableCode.call(PyTableCode.java:173)
        at org.python.core.PyBaseCode.call(PyBaseCode.java:134)
        at org.python.core.PyFunction.__call__(PyFunction.java:416)
        at org.python.core.PyMethod.__call__(PyMethod.java:126)
        at pip._vendor.msgpack.fallback$py.pack$34(C:\Users\86176\AppData\Local\Temp\pip-install-7tzluu\pip\pip\_vendor\msgpack\fallback.py:863)
        at pip._vendor.msgpack.fallback$py.call_function(C:\Users\86176\AppData\Local\Temp\pip-install-7tzluu\pip\pip\_vendor\msgpack\fallback.py)
        at org.python.core.PyTableCode.call(PyTableCode.java:173)
        at org.python.core.PyBaseCode.call(PyBaseCode.java:150)
        at org.python.core.PyFunction.__call__(PyFunction.java:426)
        at org.python.core.PyMethod.__call__(PyMethod.java:141)
        at pip._vendor.msgpack$py.packb$4(C:\Users\86176\AppData\Local\Temp\pip-install-7tzluu\pip\pip\_vendor\msgpack\__init__.py:47)
        at pip._vendor.msgpack$py.call_function(C:\Users\86176\AppData\Local\Temp\pip-install-7tzluu\pip\pip\_vendor\msgpack\__init__.py)
        at org.python.core.PyTableCode.call(PyTableCode.java:173)
        at org.python.core.PyBaseCode.call(PyBaseCode.java:306)
        at org.python.core.PyFunction.function___call__(PyFunction.java:474)
        at org.python.core.PyFunction.__call__(PyFunction.java:469)
        at pip._vendor.cachecontrol.serialize$py.dumps$4(C:\Users\86176\AppData\Local\Temp\pip-install-7tzluu\pip\pip\_vendor\cachecontrol\serialize.py:72)
        at pip._vendor.cachecontrol.serialize$py.call_function(C:\Users\86176\AppData\Local\Temp\pip-install-7tzluu\pip\pip\_vendor\cachecontrol\serialize.py)
        at org.python.core.PyTableCode.call(PyTableCode.java:173)
        at org.python.core.PyBaseCode.call(PyBaseCode.java:306)
java.lang.OutOfMemoryError: java.lang.OutOfMemoryError: Java heap space

----------
components: None
messages: 13030
milestone: Jython 2.7.2
nosy: hao...@16...
severity: normal
status: open
title: java.lang.OutOfMemoryError: Java heap space
type: behaviour
versions: Jython 2.7.2

_______________________________________
Jython tracker <re...@bu...>
<https://bugs.jython.org/issue2878>
_______________________________________