pyqwt-users — Discussion & help list for PyQwt & PyQwt3D users

[Pyqwt-users] PyQwt-3.8 and sip/PyQt 3.8

[Alexandre M. de A. <le...@es...>]

	Hi there

	I'm trying to compile PyQwt (3.8) using the latest commercial
version of sip and PyQt (3.9) but when I import qwt (from inside python) I
get the following error:

****************************************************************************
Python 2.3.2 (#1, Nov 15 2003, 19:07:05) 
	[GCC 3.3] on linux2
	Type "help", "copyright", "credits" or "license" for more
information.
	>>> import qwt
	Traceback (most recent call last):
	  File "<stdin>", line 1, in ?
	  File "/usr/local/lib/python2.3/site-packages/qwt/__init__.py",
line 	15, in ?
	    import libqwtc
	ImportError: /usr/local/lib/python2.3/site-packages/qwt/libqwtc.so:
undefined symbol: _ZTV11sipProxyqwt
****************************************************************************

	I know that that site explicitly says that PyQwt is compatible with
sip/PyQt 3.8 and does not mention version 3.9, but the sip/PyQt 3.8 sources
are not available in their site. So I ask:


	1) PyQwt 3.8 is compatible with sip/PyQt 3.9?


	2) If not: Is there a SNAPSHOT that is compatible?


	Thanks in advance


	Alexandre Motta de Andrade
	www.esss.com.br


P.S.: I've sent an e-mail to sip/PyQt developers to obtain the 3.8 version,
but I'm still waiting for an answer.

Re: [Pyqwt-users] INstallation of PyQwt on windows using sip 4.0rc1 and PyQt 3.9 commercial

[<gve...@gr...>]

On Fri, 19 Dec 2003 16:43:32 +0100
"Gerhard Spitzlsperger" <ger...@gs...> wrote:

> Dear all,
> 
> I tried to install PyQwt on windows using sip 4.0rc1 and PyQt 3.9. The
> installation
> claims a missing file:
> .configure\sipModuleDeclModule.h: No such file or directory
> 
> Is this due to not completely matching versions? And is there some work
> around?
> 
> thanks
> gerhard
> 
Hi Gerhard,

sip-4.0rc1 and PyQt-3.9 are sufficiently different from their predecessors
that PyQwt-3.8 will not work.

The main branch in CVS works with sip-4.0rc1/PyQt-3.9 on Linux. I expect that
it also works with Windows (the changes were not in the platform related parts),
but I cannot test it (I have no commercial license and there is no
non-commercial version for PyQt-3.9).

I will mail you an URL where you can get a snapshot from CVS. Let me know
if you have any problems.

I still want to do some code clean up and I also did not yet implement support
for Mac OS X (but I expect that to be easy).

Gerard

PS: if you run into problems, the build log is extremely useful -- thanks.


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[Pyqwt-users] INstallation of PyQwt on windows using sip 4.0rc1 and PyQt 3.9 commercial

[Gerhard S. <ger...@gs...>]

Dear all,

I tried to install PyQwt on windows using sip 4.0rc1 and PyQt 3.9. The
installation
claims a missing file:
.configure\sipModuleDeclModule.h: No such file or directory

Is this due to not completely matching versions? And is there some work
around?

thanks
gerhard

C:\Programme\cygwin\home\Owner\PyQwt-3.8>python setup.py bdist_wininst
running bdist_wininst
Config succeeded -- QtInfo:
qt_version_str = 3.2.1
define_macros = [('NDEBUG', None), ('QT_NODEBUG', None), ('QT_DLL', None),
('QT_
THREAD_SUPPORT', None), ('QWT_NO_STL', None)]
qtlibdir = C:\PROGRA~1\QT\lib
make = {'CXXFLAGS_EXCEPTIONS_OFF': '', 'INCDIR_QT':
'C:\\PROGRA~1\\QT\\include',
 'CXXFLAGS_MT': '-MD', 'INCDIR': '', 'LIB': 'lib /NOLOGO', 'LIBDIR_QT':
'C:\\PRO
GRA~1\\QT\\lib', 'YACCFLAGS': '-d', 'LFLAGS_DEBUG': '/DEBUG',
'LFLAGS_OPENGL': '
/DELAYLOAD:opengl32.dll', 'LFLAGS_QT_DLL': '/BASE:0x39D00000', 'YACC':
'byacc',
'RUN_CXX': '$(CXX) -c $(CXXFLAGS) $(INCPATH) -Fo$obj $src', 'CFLAGS_ST_DBG':
'-M
L', 'LINK': 'link', 'LIBS_CONSOLE': '', 'CFLAGS_MT_DLLDBG': '-MD', 'LIBS':
'', '
LIBS_OPENGL': 'opengl32.lib glu32.lib', 'CFLAGS_WARN_OFF': '-W0',
'CFLAGS_EXCEPT
IONS_OFF': '', 'CFLAGS_EXCEPTIONS_ON': '-GX', 'LEXFLAGS': '',
'CXXFLAGS_WARN_ON'
: '-W3 -w34100 -w34189', 'UIC': 'C:\\PROGRA~1\\QT\\bin\\uic.exe',
'CFLAGS_MT_DBG
': '-MD', 'CXXFLAGS_DEBUG': '-Zi -Gm', 'LIBS_QT_THREAD': 'qt-mt321',
'CXXFLAGS_M
T_DLLDBG': '-MD', 'RUN_CC': '$(CC) -c $(CFLAGS) $(INCPATH) -Fo$obj $src',
'RUN_C
C_IMP_BATCH': '$(CC) -c $(CFLAGS) $(INCPATH) -Fo$@ @<<', 'IDC':
'C:\\PROGRA~1\\Q
T\\bin\\idc.exe', 'DEL_FILE': 'del', 'LFLAGS_WINDOWS_DLL':
'/SUBSYSTEM:WINDOWS /
DLL', 'CFLAGS_STL_OFF': '', 'CXXFLAGS_STL_OFF': '', 'CFLAGS_WARN_ON': '-W3',
'CX
XFLAGS_ST_DBG': '-ML', 'CXXFLAGS_YACC': '', 'CXXFLAGS_MT_DBG': '-MD',
'CXXFLAGS_
WARN_OFF': '-W0', 'CFLAGS_MT': '-MD', 'CFLAGS_MT_DLL': '-MD',
'LIBS_QT_ENTRY': '
qtmain.lib', 'MOVE': 'move', 'LIBS_QT': 'qt.lib', 'CXXFLAGS_EXCEPTIONS_ON':
'-GX
', 'ZIP': 'zip -r -9', 'CC': 'cl', 'LFLAGS_RELEASE':
'/DELAYLOAD:comdlg32.dll /D
ELAYLOAD:oleaut32.dll /DELAYLOAD:winmm.dll /DELAYLOAD:wsock32.dll
/DELAYLOAD:win
spool.dll', 'CXXFLAGS_RELEASE': '-O1', 'RC': 'rc', 'MKDIR': 'mkdir',
'RUN_CXX_IM
P_BATCH': '$(CXX) -c $(CXXFLAGS) $(INCPATH) -Fo$@ @<<', 'CHK_DIR_EXISTS':
'if no
t exist', 'DEL_DIR': 'rmdir', 'MOC': 'C:\\PROGRA~1\\QT\\bin\\moc.exe',
'RUN_CXX_
IMP': '$(CXX) -c $(CXXFLAGS) $(INCPATH) -Fo$@ $<', 'COPY': 'copy',
'CXXFLAGS_ST'
: '-ML', 'CXXFLAGS': '-nologo -Zm200', 'CFLAGS_RTTI_ON': '-GR', 'LFLAGS':
'/NOLO
GO', 'CFLAGS_RTTI_OFF': '', 'CXXFLAGS_RTTI_ON': '-GR', 'CFLAGS_ST': '-ML',
'CXX'
: 'cl', 'CFLAGS_RELEASE': '-O1', 'LFLAGS_CONSOLE_DLL': '/SUBSYSTEM:CONSOLE
/DLL'
, 'IDL': 'midl', 'RUN_CC_IMP': '$(CC) -c $(CFLAGS) $(INCPATH) -Fo$@ $<',
'CXXFLA
GS_STL_ON': '-GX', 'CXXFLAGS_RTTI_OFF': '', 'CFLAGS_YACC': '',
'LFLAGS_CONSOLE':
 '/SUBSYSTEM:CONSOLE', 'CFLAGS': '-nologo -Zm200', 'LEX': 'flex',
'LFLAGS_WINDOW
S': '/SUBSYSTEM:WINDOWS', 'CXXFLAGS_MT_DLL': '-MD', 'CFLAGS_STL_ON': '-GX',
'CFL
AGS_DEBUG': '-Zi -Gm', 'LIBS_WINDOWS': 'kernel32.lib user32.lib gdi32.lib
comdlg
32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib imm32.lib
winmm.
lib wsock32.lib winspool.lib delayimp.lib'}
qtbindir = C:\PROGRA~1\QT\bin
libraries = ['qt-mt321']
qtdir = C:\PROGRA~1\QT
qtincdir = C:\PROGRA~1\QT\include
sip_t_options = ['Qt_3_2_0', 'WS_WIN']
type = ['thread']
library_dirs = ['C:\\PROGRA~1\\QT\\lib']
include_dirs = ['C:\\PROGRA~1\\QT\\include']

running build
running run_sip
error: .configure\sipModuleDeclModule.h: No such file or directory

Re: [Pyqwt-users] Examples question

[Gerard V. <gve...@gr...>]

On Tue, 16 Dec 2003 18:15:02 -0800
"Mike" <mi...@di...> wrote:

> Hello, I just build PyQWT on RH Linux 8, using QT 3.2.3, SIP 3.8 and Qwt
> 0.4.1. The build and install went fine, but when I run an example, it fails
> with the error:
> 
PyQwt-3.8 comes with its own slightly modified copy of Qwt-4.2.0rc1 and it
should not see your Qwt-0.4.1 at all.
 
> "QPaintDevice: Must construct a QApplication before a QPaintDevice". Perhaps
> I am using the wrong version of something?

Any example?

This error occurs when there is no QApplication instance and the program wants
to paint on screen. In almost all examples an QApplication instance is created
in the function main(). The only exception that I can think of is ICompass.py,
but here the iqt module instantianates an QApplication behind your back.

If you need more help, rebuild PyQwt with the command:
make force
and mail me the output 'LOG.force' so that I can figure out what went wrong
in the build process.

Gerard

[Pyqwt-users] Examples question

[Mike <mi...@di...>]

Hello, I just build PyQWT on RH Linux 8, using QT 3.2.3, SIP 3.8 and Qwt
0.4.1. The build and install went fine, but when I run an example, it fails
with the error:

"QPaintDevice: Must construct a QApplication before a QPaintDevice". Perhaps
I am using the wrong version of something?

Mike

------
Mike Smithwick, author : Distant Suns, First Light, Distant Suns: Grand Tour
http://www.distantsuns.com

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and a proud Arab.' I said, `When they arrested you why didn't you shoot one
bullet? You are a coward.'

'And he started to use very colorful language. Basically, he used all his
French.'



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Re: [Pyqwt-users] Installation error - PyQwt-3.8 KeyError: 'RPATH'

[Gerard V. <gve...@gr...>]

On Sun, 30 Nov 2003 14:28:47 +0000
Andy Prior <and...@nt...> wrote:

> Installation fails in "sysconfig.py" with "KeyError: 'RPATH'.
> 
> It appears that in the generation of the dictionary "make_info{}" no 
> entry is made for 'RPATH' consequently the above error is returned.
> 
> I am guessing that RPATH is "relative path" and it modifies the Qt 
> library path.  In any case, forcing the 'if' statement to FALSE 
> resulted in completion of the installation and all appears well.
> 
> Can anyone shed light on what 'RPATH' should be?
> 
Thanks for the bug report.

RPATH is only important if your system uses dynamic linking and if
you have installed several Qt-3.x.x libraries (I do for testing and
identifying bugs in Qt).  In this case the mechanism responsible
for dynamic libraries may get confused. The RPATH option removes the
ambiguity by specifying a full path to the library.

In summary: you probably don't care.

A real fix for the bug is:

[packer@venus packer]$ more CVS/htdoc/patches/PyQwt-3.8a.patch
--- PyQwt-3.8/pyqt_distutils/sysconfig.py.upgrade       Sun Nov  2 10:47:27 2003
+++ PyQwt-3.8/pyqt_distutils/sysconfig.py       Mon Dec  1 07:32:16 2003
@@ -64,7 +64,7 @@
                 '%(CXXFLAGS_WARN_ON)s '
                 ) % make_info

-        if make_info['RPATH']:
+        if make_info.has_key('RPATH'):
             linker_so = (
                 '%(CXX)s '
                 '%(RPATH)s%(LIBDIR_QT)s '
[packer@venus packer]$

You may be using AIX of DG/UX. We (Qwt developers) have no access to these
platforms. So, I am very interested in what platform you are using.
Sending the pointee of the symbolic link $(QTDIR)/mkspecs/default is OK,
For instance:

[packer@venus packer]$ ls -l /usr/lib/qt323/mkspecs/default
lrwxrwxrwx    1 root     root            9 Nov 14 19:56 /usr/lib/qt323/mkspecs/default -> linux-g++/
[packer@venus packer]$

Gerard

[Pyqwt-users] Installation error - PyQwt-3.8 KeyError: 'RPATH'

[Andy P. <and...@nt...>]

Installation fails in "sysconfig.py" with "KeyError: 'RPATH'.

It appears that in the generation of the dictionary "make_info{}" no 
entry is made for 'RPATH' consequently the above error is returned.

I am guessing that RPATH is "relative path" and it modifies the Qt 
library path.  In any case, forcing the 'if' statement to FALSE 
resulted in completion of the installation and all appears well.

Can anyone shed light on what 'RPATH' should be?

[Pyqwt-users] ANN: PyQwt-3.8

[Gerard V. <gve...@gr...>]

PyQwt-3.8 = FAST and EASY data plotting for Python and (Py)Qt.

PyQwt is a set of Python bindings for the Qwt C++ class library which
extends the Qt framework with widgets for scientific and engineering
applications.

It supports the use of PyQt, Qt, Qwt, the Numerical Python extensions
(either Numeric, or numarray or both) and optionally SciPy in a GUI
Python application or in an interactive Python session.

The home page of PyQwt is http://pyqwt.sourceforge.net.

Main changes in PyQwt-3.8:

1. PyQwt inherits from Qwt the new classes QwtPicker, QwtPlotPicker and
   QwtPlotZoomer.
   QwtPicker can make any widget react to events by event filtering.
   QwtPlotPicker is a QwtPicker taylored to the plot canvas.
   QwtPlotZoomer implements infinite deep zooming on the plot canvas.

2. PyQwt inherits from Qwt the support for Qt's rich text format in QwtPlot
   to display equations like E=mc<sup>2</sup>.
   Caveat: in principle, a truetype font with full unicode support is better
   to typeset equations.

3. Bug fixes to support event filtering code (see EventFilterDemo.py).

4. Conversion of a QImage to a Numeric array or numarray array.

5. Better support for cloning a plot into Grace from the command line
   interpreter friendly plot classes.

6. PyQwt-3.8 works with PyQt-3.8.1 downto -3.6 and Qt-3.2.3 downto -2.3.0.

7. License change: GPL with permission for dynamic linking to commercial,
   educational and non-commercial versions of Qt, PyQt and sip.  In this
   case PyQwt becomes a free plug-in for a non-free program.


Gerard Vermeulen

Re: [Pyqwt-users] PyQwt3.8

[Gerard V. <gve...@gr...>]

On Sun, 21 Sep 2003 16:01:01 +0200
Ergun Metin <me...@fh...> wrote:

> Hi,
> 
> we are using PyQwt at our technical university developing python applications 
> for the department of building services engineering. That allows our students 
> to use these programs at home using both environments Linux and Windows.
> 
> Unfortunately we had to change to Python2.3 and found some dead links on your 
> projects homepage. My question is, when do you plan to publish PyQwt3.8. If 
> you need some help for compilation, I could do it under Windows. But I do not 
> have deep knowledge about the internas of PyQwt.
> 
> Thanks a lot for the good work and sharing PyQwt with us.
> 
> Best regards, Ergun Metin
> 
Hi,

The reasons for the delay of PyQwt-3.8 are several:
(1) the Idle environment with Python-2.3 does not work on my environment
    (Win4Lin/Windows-98).
(2) I am too much involved with Qwt itself
(3) Qwt has got a lot of new features and more to come (always later than
    hoped for).

But I have built a PyQwt_Qt230-3.7b.win32-py2.3.exe for Python-2.3,
PyQt-3.8, Numeric-23.1

It is available on sourceforge (the mirrors within a day, I hope).
Let me know if it works.

Gerard

[Pyqwt-users] PyQwt3.8

[Ergun M. <me...@fh...>]

Hi,

we are using PyQwt at our technical university developing python applications 
for the department of building services engineering. That allows our students 
to use these programs at home using both environments Linux and Windows.

Unfortunately we had to change to Python2.3 and found some dead links on your 
projects homepage. My question is, when do you plan to publish PyQwt3.8. If 
you need some help for compilation, I could do it under Windows. But I do not 
have deep knowledge about the internas of PyQwt.

Thanks a lot for the good work and sharing PyQwt with us.

Best regards, Ergun Metin

Re: [Pyqwt-users] Bug in QwtPlot.setTitle? (PyQwt-3.7)

[Gerard V. <gve...@gr...>]

Hi Martin,

thanks. Your corrections have been committed to CVS

Gerard

On Mon, 28 Jul 2003 12:06:52 +0200
Martin Takeo Wiechert <mar...@gm...> wrote:

> Hi,
> 
> 
> I encountered a problem with a QtDesigner/pyuic generated form:
> 
> 
> 
> --- snip ---
> 
> class Wehner(QMainWindow):
> 	def __init__(self,parent = None,name = None,fl = 0):
> 
> --- snip ---
> 
> 		self.PosPlot.setTitle(self.__tr("Position"))
> 
> --- snip ---
> 
> 	def  __tr(self,s,c = None):
> 		return qApp.translate("Wehner",s,c)
> 
> --- snip ---
> 
> 
> 
> self.PosPlot is a QwtPlot instance. The setTitle call raises the following 
> exception:
> 
> TypeError (Argument 1 of QwtPlot.setTitle() has an invalid type)
> 
> 
> 
> Changing line 160 in qwtplot.sip from
> 
> 	void setTitle(const char *);
> 
> to
> 
> 	void setTitle(const Qstring &);
> 
> helps. By analogy I did the same with line 453
> 
> 	bool setMarkerLabel(long, const char *);
> 
> As I do not know much about sip, I cannot tell if this breaks anything.
> 
> 
> 
> As I am not on the list, please answer directly.
> 
> 
> Regards,
> Martin Wiechert.
> 
> 
> 
> -------------------------------------------------------
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> 

[Pyqwt-users] Bug in QwtPlot.setTitle? (PyQwt-3.7)

[Martin T. W. <mar...@gm...>]

Hi,


I encountered a problem with a QtDesigner/pyuic generated form:



--- snip ---

class Wehner(QMainWindow):
	def __init__(self,parent = None,name = None,fl = 0):

--- snip ---

		self.PosPlot.setTitle(self.__tr("Position"))

--- snip ---

	def  __tr(self,s,c = None):
		return qApp.translate("Wehner",s,c)

--- snip ---



self.PosPlot is a QwtPlot instance. The setTitle call raises the following 
exception:

TypeError (Argument 1 of QwtPlot.setTitle() has an invalid type)



Changing line 160 in qwtplot.sip from

	void setTitle(const char *);

to

	void setTitle(const Qstring &);

helps. By analogy I did the same with line 453

	bool setMarkerLabel(long, const char *);

As I do not know much about sip, I cannot tell if this breaks anything.



As I am not on the list, please answer directly.


Regards,
Martin Wiechert.

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