[PyX-devel] [ pyx-Bugs-817717 ] TeX error with PyX-0.4.1

SourceForge Headquarters 1320 Columbia Street Suite 310 San Diego, CA 92101 +1 (858) 422-6466

Bugs item #817717, was opened at 2003-10-04 07:17
Message generated for change (Comment added) made by nobody
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=442886&aid=817717&group_id=45430

Category: None
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: Nobody/Anonymous (nobody)
Assigned to: Nobody/Anonymous (nobody)
Summary: TeX error with PyX-0.4.1

Initial Comment:
I run Python 2.1.3, TeX (Web2C 7.3.7) 3.14159 and
kpathsea version 3.3.7 under Debian GNU/Linux 3.0.

If i run any of the examples which output some text I get 
the following error message:sieck@acertm:~$ python
/usr/lib/python2.1/site-packages/PyX/examples/hello.py 
Traceback (most recent call last):
  File
"/usr/lib/python2.1/site-packages/PyX/examples/hello.py",
line 4, in ?
    c.text(0, 0, "Hello, world!")
  File "/home/sieck/packages/PyX-0.4.1/pyx/canvas.py",
line 767, in text
  File "/home/sieck/packages/PyX-0.4.1/pyx/text.py",
line 2283, in text
  File "/home/sieck/packages/PyX-0.4.1/pyx/text.py",
line 2271, in _text
  File "/home/sieck/packages/PyX-0.4.1/pyx/text.py",
line 1950, in execute
  File "/home/sieck/packages/PyX-0.4.1/pyx/text.py",
line 2070, in execute
pyx.text.TexResultError: TeX didn't respond as expected
within the timeout period 
(5 seconds).
The expression passed to TeX was:
  \scrollmode
  \raiseerror%
  \def\PyX{P\kern-.3em\lower.5ex\hbox{Y}\kern-.18em X}%
  \gdef\PyXHAlign{0}%
  \newbox\PyXBox%
  \newbox\PyXBoxHAligned%
  \newdimen\PyXDimenHAlignLT%
  \newdimen\PyXDimenHAlignRT%
  \newbox\PyXBoxVAlign%
  \newdimen\PyXDimenVAlign%
  \newbox\PyXBoxVBox%
  \newdimen\PyXDimenVBox%
  \long\def\ProcessPyXBox#1#2{%
  \setbox\PyXBox=\hbox{{#1}}%
  \PyXDimenHAlignLT=\PyXHAlign\wd\PyXBox%
  \PyXDimenHAlignRT=\wd\PyXBox%
  \advance\PyXDimenHAlignRT by -\PyXDimenHAlignLT%
  \gdef\PyXHAlign{0}%

\immediate\write16{PyXBox:page=#2,lt=\the\PyXDimenHAlignLT,rt=\the\PyXDimenHAlig
nRT,ht=\the\ht\PyXBox,dp=\the\dp\PyXBox:}%

\setbox\PyXBoxHAligned=\hbox{\kern-\PyXDimenHAlignLT\box\PyXBox}%
  \ht\PyXBoxHAligned0pt%

{\count0=80\count1=121\count2=88\count3=#2\shipout\box\PyXBoxHAligned}}%

\def\PyXInput#1{\immediate\write16{PyXInputMarker:executeid=#1:}}%
  \PyXInput{1}%
After parsing the return message from TeX, the
following was left:
  This is TeX, Version 3.14159 (Web2C 7.3.7)
  ! I can't find file `@473.0'.
  <*> @473.0

  Please type another input file name: ! I can't find
file `\scrollmode'.
  (cut after 5 lines, increase errordebug for more output)

# end of output

Any ideas?

Alexander Sieck

alexander dot sieck at web dot de

# start of output

----------------------------------------------------------------------

Comment By: Nobody/Anonymous (nobody)
Date: 2003-10-10 11:18

Message:
Logged In: NO 

Hello,

as described in the header of
  /usr/share/texmf/dvips/config/psfonts.map
the file psfonts.map is created by the script
  /usr/share/texmf/dvips/config/updmap
Changing
  type1_default=false
  #type1_default=true
to
  # type1_default=false
  type1_default=true
in this script and running it added the missing lines like
  cmr10 CMR10 <cmr10.pfb
to psfonts.map .

Now all PyX examples work.
The meaning of the encoding files *.enc
you mentioned and what you mean by
"you should better extract the enclosing font information"
is not clear to me yet.

Thanks for your quick response.

Alexander

----------------------------------------------------------------------

Comment By: André Wobst (wobsta)
Date: 2003-10-08 23:06

Message:
Logged In: YES 
user_id=405853

I see. Point is, that the package installs the fonts but
does not automatically include them in the file psfonts.map
(used by dvips for example). This file contains some
information about the available PostScript-Fonts. When you
request cmr10 for example, there should be such an entry in
the psfonts.map file. (Run "kpsewhich psfonts.map" to find
this mapping file; it should be located at
/usr/share/texmf/dvips/config/psfonts.map.) Although there
are mapping files for the Computer Modern Roman fonts
available in your debian distribution (stable, isn't it),
they do not contain proper encoding information. Instead of
using those information from
/usr/share/texmf/dvips/bluesky/psfonts.cmr, you should
better extract the enclosing font information. You should be
able to run test.py in the test directory after extraction.
You can then install this psfonts.map and *.enc files in the
appropriate texmf directory to make it globally available.
You can either install it into something like
/usr/local/share/texmf/dvips/psfonts or in your home
directory ~/texmf/dvips/psfonts. See "kpsewhich texmf.cnf"
about your TeX related search path configuration.

HTH, Andre

----------------------------------------------------------------------

Comment By: Nobody/Anonymous (nobody)
Date: 2003-10-08 13:19

Message:
Logged In: NO 

Hello,

it still doesn't work. I have installed tetex-extra:
sieck@acertm:~/packages/PyX-0.4.1/examples$ find
/usr/share/texmf -name cmr10*
/usr/share/texmf/fonts/type1/bluesky/cm/cmr10.pfb
/usr/share/texmf/fonts/tfm/public/cm/cmr10.tfm
/usr/share/texmf/fonts/source/public/cm/cmr10.mf
sieck@acertm:~/packages/PyX-0.4.1/examples$ ls
/usr/share/texmf/fonts/type1/
adobe  bitstrea  bluesky  hoekwater  public  urw

But for all examples with text-output, e.g. hello.py,
I still get the error:

RuntimeError: no information for font 'cmr10' found in font
mapping file

When I did run make in /PyX-0.4.1/manual/ the first time,
there was a message about some files that couldn't be
created, a request to rerun it and finally the same error
as above.
After the rerun it finished without this error message
and manual.dvi was created.

Are there any environment variables I have to set or does
one need to initialize the Type1 fonts?
I rebooted after installing tetex-extra, to initialize tetex or
kpathsea, but this didn't help.
In the docu I only found a hint to mktexls-r, but this is only
to speed kpathsea up, right?

Regards
               Alexander

----------------------------------------------------------------------

Comment By: André Wobst (wobsta)
Date: 2003-10-07 23:48

Message:
Logged In: YES 
user_id=405853

It's nice to see that you could get distutils working. You
are totally right about the python-dev package you need to
install for that.

It's quite likely that you are missing just one last point
now: You need the TeX-Fonts in Type1 format (a scalable font
format from Adobe available in a direct PostScript version
(called *.pfa) and a packed version of it (called *.pfb) --
the later are usually distributed and PyX needs it). This is
nice to have for tex&dvips as well, since you are not stick
to the metafont pk-version of the fonts anymore (which has
some advantages, e.g. in pdf creation and other things). The
type1-Fonts are available in the debian package tetex-extra.
Just install this package to get the files like cmr10.pfb
... then try again.

HTH, Andre

----------------------------------------------------------------------

Comment By: Nobody/Anonymous (nobody)
Date: 2003-10-07 14:35

Message:
Logged In: NO 

Hello,

since I couldn't find the distutils for Python2.1 
"python setup.py install" failed with
"No module distutils.core". Therefore, I extracted
PyX-0.4.1.tar directly to ../lib/python2.1/site-packages.
With this I could produce the example box.eps, but the
examples with text-output produced the message given
above.
In the meantime I learned that since Python1.6 the
distutils module is in python2.x-dev and installed
it. Then I run "python setup.py install" and removed
the PyX directory in site-packages. This solved the
problem mentioned above.

Unfortunately, now something is wrong with the TeX fonts:
=== start of output ===
sieck@acertm:~/packages/PyX-0.4.1/examples$ python hello.py
Traceback (most recent call last):
  File "hello.py", line 6, in ?
    c.writetofile("hello")
  File "/usr/lib/python2.1/site-packages/pyx/canvas.py",
line 936, in writetofile
    for pritem in self.prolog():
  File "/usr/lib/python2.1/site-packages/pyx/canvas.py",
line 661, in prolog
    result.extend(cmd.prolog())
  File "/usr/lib/python2.1/site-packages/pyx/text.py", line
1780, in prolog
    return result + self.texrunner.prolog(self.dvinumber,
self.page)
  File "/usr/lib/python2.1/site-packages/pyx/text.py", line
2086, in prolog
    self.getdvi()
  File "/usr/lib/python2.1/site-packages/pyx/text.py", line
2080, in getdvi
    self.dvifiles.append(DVIFile(dvifilename,
debug=self.dvidebug))
  File "/usr/lib/python2.1/site-packages/pyx/text.py", line
685, in __init__
    self.readfile()
  File "/usr/lib/python2.1/site-packages/pyx/text.py", line
1087, in readfile
    state = self._read_page()
  File "/usr/lib/python2.1/site-packages/pyx/text.py", line
1045, in _read_page
    file.read(file.readuchar()+file.readuchar()))
  File "/usr/lib/python2.1/site-packages/pyx/text.py", line
773, in definefont
    self.fonts[num] =  Font(fontname, c, q, d, self.tfmconv,
self.debug > 1)
  File "/usr/lib/python2.1/site-packages/pyx/text.py", line
516, in __init__
    raise RuntimeError("no information for font '%s' found
in font mapping file, aborting" % name)
  RuntimeError: no information for font 'cmr10' found in
font mapping file, aborting
=== end of output ===

"libkpathsea-dev - kpathsea.a and include files for teTeX"
is installed.
The environment variables in /etc/texmf/texmf.cnf seem to be
in agreement
with the documentation.
A file cmr10.tfm does exist:
sieck@acertm:~$ find /usr/share/texmf -name cmr10*
/usr/share/texmf/fonts/tfm/public/cm/cmr10.tfm
/usr/share/texmf/fonts/source/public/cm/cmr10.mf

I can use LaTeX separately without problems, e.g. article.cls
and german.sty and the fonts are found.

I am not sure whether the problem is caused by my environment
or by PyX.

Regards 
             Alexander

----------------------------------------------------------------------

Comment By: André Wobst (wobsta)
Date: 2003-10-06 08:46

Message:
Logged In: YES 
user_id=405853

I could not yet reproduce your problem. It would be really
nice if you could do some tests in order to better trace
down the problem.

First of all, I'm wondering that you've installed the
examples systemwide (this would not be the case when you run
"python setup.py install" in the pyx directory --- which is
the suggested way to install pyx). The PyX directory in
/usr/lib/pythonx.x/site-packages should not contain
uppercase characters. You can already see some strange
behavior that pyx in taken not from
/usr/lib/pythonx.x/site-packages/pyx but from somewhere in
your home directory. I expect this to be due to your way of
installing pyx. Could you first of all try to fix this and
the tell me, if the problem remains ...

By the way, I should note that pyx indeed tries to create a
temporary file handed over to TeX. This file has a temporary
name and is removed after TeX should have read it. The file
is created in the local directory (all these things are
build in order to come over some TeX limitations). However,
since the creation of the file should have been done at that
point your problem occures (otherwise you should have got
some exception earlier), you might be able to see that file
(you might need to turn off the atexit call to cleen the
temporary files in text.py). On the other hand, TeX said in
the example above, that it could not read that very file.
Still, very strange ...

----------------------------------------------------------------------

You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=442886&aid=817717&group_id=45430