Re: Python-generated diagram as external material

[Julien Rioux]

John K john...@... writes:
 OK I tried this. I defined a new Python file format with extension .py in Lyx,
and then created a Python - PDF
 (pdflatex) converter that runs the command:
 
 python $$i $$o
 
 But when I try exporting the document to PDF I get the following error:
 
 No information for converting python format files to png. Define a converter
in the preferences.
 
 Why is it trying to convert to PNG?
 
 J   

What you did seems all correct. I don't know what the problem might be, because
as far as I know PDF should be used for output and PNG used only to display the
image within the LyX window. Perhaps someone else has more experience with this.

--
Julien

Re: Python-generated diagram as external material

[Julien Rioux]

John K john...@... writes:
 OK I tried this. I defined a new Python file format with extension .py in Lyx,
and then created a Python - PDF
 (pdflatex) converter that runs the command:
 
 python $$i $$o
 
 But when I try exporting the document to PDF I get the following error:
 
 No information for converting python format files to png. Define a converter
in the preferences.
 
 Why is it trying to convert to PNG?
 
 J   

What you did seems all correct. I don't know what the problem might be, because
as far as I know PDF should be used for output and PNG used only to display the
image within the LyX window. Perhaps someone else has more experience with this.

--
Julien

RE: Python-generated diagram as external material

[John K]

>> I added the following to the Lyx external_templates file:
>>
>> Template Python
>> GuiName "Python: $$AbsOrRelPathParent$$Basename"
>> HelpText
>> Python diagram.
>> HelpTextEnd
>> InputFormat "*"
>
> I think you need to define an input format and a .py -> .pdf converter which
> runs the python interpreter on your file.
>
>> FileFilter "*.py"
>> AutomaticProduction true
>> Preview Graphics
>> Format PDFLaTeX
>> Product "\\includegraphics{$$AbsPath$$Basename.pdf}"
>> Requirement "graphicx"
>> UpdateCommand "python $$AbsPath$$Basename.py"
>
> I haven't seen any description for "UpdateCommand" anywhere. Where does that
> come from?  It's not in the documentation, or?
>
>> UpdateFormat pdf
>> UpdateResult "$$AbsPath$$Basename.pdf"
>> Requirement "graphicx"
>> ReferencedFile pdflatex "$$AbsPath$$Basename.pdf"
>> FormatEnd
>> TemplateEnd
>>
>> However, when I insert the Python script in Lyx, it draws a box that says
> "Error converting to loadable
>> format".
>
> Yes, because LyX doesn't know how to convert a python file to a graphics
> file.
> Try the way I described above: defining the file format and converter under
> the
> menu : Tools> Preferences...> File Handling.

OK I tried this. I defined a new Python file format with extension .py in Lyx, 
and then created a Python -> PDF (pdflatex) converter that runs the command:

python $$i $$o

But when I try exporting the document to PDF I get the following error:

"No information for converting python format files to png. Define a converter 
in the preferences."

Why is it trying to convert to PNG?

J 
_
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Re: Python-generated diagram as "external material"

[Julien Rioux]

John K  writes:
> OK I tried this. I defined a new Python file format with extension .py in Lyx,
and then created a Python -> PDF
> (pdflatex) converter that runs the command:
> 
> python $$i $$o
> 
> But when I try exporting the document to PDF I get the following error:
> 
> "No information for converting python format files to png. Define a converter
in the preferences."
> 
> Why is it trying to convert to PNG?
> 
> J   

What you did seems all correct. I don't know what the problem might be, because
as far as I know PDF should be used for output and PNG used only to display the
image within the LyX window. Perhaps someone else has more experience with this.

--
Julien

RE: Python-generated diagram as external material

[John K]

 John K wrote:
 
 
 I am trying to auto-generate a diagram from a Python script in my Lyx 
 document using the External Material function. I have created a Python 
 script called myscript.py which generates a diagram and saves it to 
 myscript.pdf. I am trying to make Lyx run my script to generate the 
 diagram when I export my document to PDF.
 
 I added the following to the Lyx external_templates file:
 
 Template Python
 GuiName Python: $$AbsOrRelPathParent$$Basename
 HelpText
 Python diagram.
 HelpTextEnd
 InputFormat *
 FileFilter *.py
 AutomaticProduction true
 Preview Graphics
 Format PDFLaTeX
 Product \\includegraphics{$$AbsPath$$Basename.pdf}
 Requirement graphicx
 UpdateCommand python $$AbsPath$$Basename.py
 UpdateFormat pdf
 UpdateResult $$AbsPath$$Basename.pdf
 Requirement graphicx
 ReferencedFile pdflatex $$AbsPath$$Basename.pdf
 FormatEnd
 TemplateEnd
 
 However, when I insert the Python script in Lyx, it draws a box that says 
 Error converting to loadable format.
 This isn't critical, it merely means you won't get a preview within LyX 
 because of a failure to convert to something displayable. (png, I believe.)
 
 Of course, this may also be a symptom of what's wrong with the main 
 conversion.
 
 If I try exporting to PDF using pdflatex, I get the following error:
 
 Missing $ inserted. Missing { inserted. I've inserted a begin-math/end-math 
 symbol since I think you left one out. Proceed, with fingers crossed.
 
 If I export to Latex using pdflatex, it seems to export correctly, and my 
 text file contains something like this:
 
 begin{document}
 \includegraphics{C:/Documents and Settings/MyUsername/Desktop/myscript.pdf}
 \end{document}
 
 However, it doesn't run my update command, i.e. doesn't run the Python 
 script. (I've even tried changing my update command to things like echo 
 test output.txt but I can't seem to get any commands to run at all.)
 
 That is the problem, and I guess it explains why everything else goes 
 wrong too.
 
 First thing to check: is python in the path? I.e. can you give the 
 command python filename.py on the command line - will that work?
 
 If python isn't in the path, then LyX won't find it.

Yes, Python is on the path. I tried putting the full path to Python in the 
UpdateCommand as well but that didn't work either. I don't think it's a path 
issue because even a command like echo test output.txt does not work.

 If this succeed, will the latex export then work, as long as  the 
 manually converted file is present?

If I first run the Python script manually and then try exporting the Lyx 
document to PDF (pdflatex), I still get this error:

Missing $ inserted. Missing { inserted. I've inserted a
begin-math/end-math symbol since I think you left one out. Proceed,
with fingers crossed.

However, if I export to LaTeX (pdflatex), and then open this LaTeX file in 
TeXnicCenter, I can export to PDF with no problems and the Python-generated 
figure shows up correctly.

 Any ideas what I am doing wrong? I've tried on Lyx 1.6.3 and 1.6.5-1 on 
 Windows XP.
 
 Another wild guess: You have a path with spaces in it, e.g. Documents 
 and Settings. Some versions of LyX can't deal with that. Some can, but 
 you have to take care when a path is passed to external utilities (such 
 as python) Otherwise, you risk that:
 
 python C:\documents and settings\folder\file.py
 becomes
 python C:\documents and settings\folder\file.py
 and the latter just won't work.
 
 To check if you have space problems, copy the document and all files
 to some space-free path such as C:\test\
 See if that changes anything.

I tried putting everything in to the root directory C:\ but had the same 
problem.

J
  
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RE: Python-generated diagram as external material

[John K]

 John K wrote:
 
 
 I am trying to auto-generate a diagram from a Python script in my Lyx 
 document using the External Material function. I have created a Python 
 script called myscript.py which generates a diagram and saves it to 
 myscript.pdf. I am trying to make Lyx run my script to generate the 
 diagram when I export my document to PDF.
 
 I added the following to the Lyx external_templates file:
 
 Template Python
 GuiName Python: $$AbsOrRelPathParent$$Basename
 HelpText
 Python diagram.
 HelpTextEnd
 InputFormat *
 FileFilter *.py
 AutomaticProduction true
 Preview Graphics
 Format PDFLaTeX
 Product \\includegraphics{$$AbsPath$$Basename.pdf}
 Requirement graphicx
 UpdateCommand python $$AbsPath$$Basename.py
 UpdateFormat pdf
 UpdateResult $$AbsPath$$Basename.pdf
 Requirement graphicx
 ReferencedFile pdflatex $$AbsPath$$Basename.pdf
 FormatEnd
 TemplateEnd
 
 However, when I insert the Python script in Lyx, it draws a box that says 
 Error converting to loadable format.
 This isn't critical, it merely means you won't get a preview within LyX 
 because of a failure to convert to something displayable. (png, I believe.)
 
 Of course, this may also be a symptom of what's wrong with the main 
 conversion.
 
 If I try exporting to PDF using pdflatex, I get the following error:
 
 Missing $ inserted. Missing { inserted. I've inserted a begin-math/end-math 
 symbol since I think you left one out. Proceed, with fingers crossed.
 
 If I export to Latex using pdflatex, it seems to export correctly, and my 
 text file contains something like this:
 
 begin{document}
 \includegraphics{C:/Documents and Settings/MyUsername/Desktop/myscript.pdf}
 \end{document}
 
 However, it doesn't run my update command, i.e. doesn't run the Python 
 script. (I've even tried changing my update command to things like echo 
 test output.txt but I can't seem to get any commands to run at all.)
 
 That is the problem, and I guess it explains why everything else goes 
 wrong too.
 
 First thing to check: is python in the path? I.e. can you give the 
 command python filename.py on the command line - will that work?
 
 If python isn't in the path, then LyX won't find it.

Yes, Python is on the path. I tried putting the full path to Python in the 
UpdateCommand as well but that didn't work either. I don't think it's a path 
issue because even a command like echo test output.txt does not work.

 If this succeed, will the latex export then work, as long as  the 
 manually converted file is present?

If I first run the Python script manually and then try exporting the Lyx 
document to PDF (pdflatex), I still get this error:

Missing $ inserted. Missing { inserted. I've inserted a
begin-math/end-math symbol since I think you left one out. Proceed,
with fingers crossed.

However, if I export to LaTeX (pdflatex), and then open this LaTeX file in 
TeXnicCenter, I can export to PDF with no problems and the Python-generated 
figure shows up correctly.

 Any ideas what I am doing wrong? I've tried on Lyx 1.6.3 and 1.6.5-1 on 
 Windows XP.
 
 Another wild guess: You have a path with spaces in it, e.g. Documents 
 and Settings. Some versions of LyX can't deal with that. Some can, but 
 you have to take care when a path is passed to external utilities (such 
 as python) Otherwise, you risk that:
 
 python C:\documents and settings\folder\file.py
 becomes
 python C:\documents and settings\folder\file.py
 and the latter just won't work.
 
 To check if you have space problems, copy the document and all files
 to some space-free path such as C:\test\
 See if that changes anything.

I tried putting everything in to the root directory C:\ but had the same 
problem.

J
  
_
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RE: Python-generated diagram as "external material"

[John K]

> John K wrote:
>> 
>> 
>> I am trying to auto-generate a diagram from a Python script in my Lyx 
>> document using the "External Material" function. I have created a Python 
>> script called "myscript.py" which generates a diagram and saves it to 
>> "myscript.pdf". I am trying to make Lyx run my script to generate the 
>> diagram when I export my document to PDF.
>> 
>> I added the following to the Lyx external_templates file:
>> 
>> Template Python
>> GuiName "Python: $$AbsOrRelPathParent$$Basename"
>> HelpText
>> Python diagram.
>> HelpTextEnd
>> InputFormat "*"
>> FileFilter "*.py"
>> AutomaticProduction true
>> Preview Graphics
>> Format PDFLaTeX
>> Product "\\includegraphics{$$AbsPath$$Basename.pdf}"
>> Requirement "graphicx"
>> UpdateCommand "python $$AbsPath$$Basename.py"
>> UpdateFormat pdf
>> UpdateResult "$$AbsPath$$Basename.pdf"
>> Requirement "graphicx"
>> ReferencedFile pdflatex "$$AbsPath$$Basename.pdf"
>> FormatEnd
>> TemplateEnd
>> 
>> However, when I insert the Python script in Lyx, it draws a box that says 
>> "Error converting to loadable format".
> This isn't critical, it merely means you won't get a preview within LyX 
> because of a failure to convert to something displayable. (png, I believe.)
> 
> Of course, this may also be a symptom of what's wrong with the main 
> conversion.
> 
>> If I try exporting to PDF using pdflatex, I get the following error:
>> 
>> "Missing $ inserted. Missing { inserted. I've inserted a begin-math/end-math 
>> symbol since I think you left one out. Proceed, with fingers crossed."
>> 
>> If I export to Latex using pdflatex, it seems to export correctly, and my 
>> text file contains something like this:
>> 
>> begin{document}
>> \includegraphics{C:/Documents and Settings/MyUsername/Desktop/myscript.pdf}
>> \end{document}
>> 
>> However, it doesn't run my update command, i.e. doesn't run the Python 
>> script. (I've even tried changing my update command to things like "echo 
>> test> output.txt" but I can't seem to get any commands to run at all.)
>> 
> That is the problem, and I guess it explains why everything else goes 
> wrong too.
> 
> First thing to check: is python in the path? I.e. can you give the 
> command "python filename.py" on the command line - will that work?
> 
> If python isn't in the path, then LyX won't find it.

Yes, Python is on the path. I tried putting the full path to Python in the 
UpdateCommand as well but that didn't work either. I don't think it's a path 
issue because even a command like "echo test> output.txt" does not work.

> If this succeed, will the latex export then work, as long as  the 
> manually converted file is present?

If I first run the Python script manually and then try exporting the Lyx 
document to PDF (pdflatex), I still get this error:

"Missing $ inserted. Missing { inserted. I've inserted a
begin-math/end-math symbol since I think you left one out. Proceed,
with fingers crossed."

However, if I export to LaTeX (pdflatex), and then open this LaTeX file in 
TeXnicCenter, I can export to PDF with no problems and the Python-generated 
figure shows up correctly.

>> Any ideas what I am doing wrong? I've tried on Lyx 1.6.3 and 1.6.5-1 on 
>> Windows XP.
> 
> Another wild guess: You have a path with spaces in it, e.g. "Documents 
> and Settings". Some versions of LyX can't deal with that. Some can, but 
> you have to take care when a path is passed to external utilities (such 
> as python) Otherwise, you risk that:
> 
> python "C:\documents and settings\folder\file.py"
> becomes
> python "C:\documents" "and" "settings\folder\file.py"
> and the latter just won't work.
> 
> To check if you have space problems, copy the document and all files
> to some space-free path such as C:\test\
> See if that changes anything.

I tried putting everything in to the root directory C:\ but had the same 
problem.

J
  
_
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RE: Python-generated diagram as external material

[John K]

> John K  writes:
>> I added the following to the Lyx external_templates file:
>>
>> Template Python
>> GuiName "Python: $$AbsOrRelPathParent$$Basename"
>> HelpText
>> Python diagram.
>> HelpTextEnd
>> InputFormat "*"
>
> I think you need to define an input format and a .py -> .pdf converter which
> runs the python interpreter on your file.
>
>> FileFilter "*.py"
>> AutomaticProduction true
>> Preview Graphics
>> Format PDFLaTeX
>> Product "\\includegraphics{$$AbsPath$$Basename.pdf}"
>> Requirement "graphicx"
>> UpdateCommand "python $$AbsPath$$Basename.py"
>
> I haven't seen any description for "UpdateCommand" anywhere. Where does that
> come from? It's not in the documentation, or?

I saw it in another posting to this list, and there's a few other similar 
examples that use it on the web:
http://www.google.com.au/#hl=en=lyx+%2BUpdateCommand

>> UpdateFormat pdf
>> UpdateResult "$$AbsPath$$Basename.pdf"
>> Requirement "graphicx"
>> ReferencedFile pdflatex "$$AbsPath$$Basename.pdf"
>> FormatEnd
>> TemplateEnd
>>
>> However, when I insert the Python script in Lyx, it draws a box that says
> "Error converting to loadable
>> format".
>
> Yes, because LyX doesn't know how to convert a python file to a graphics file.
> Try the way I described above: defining the file format and converter under 
> the
> menu : Tools> Preferences...> File Handling.

I can define a new Python file format, but strangely, no matter what I do the 
"Add" button
in the converters section is greyed out. I can only create the converter by 
editing
and saving over an existing converter in the list.


> Once you have that I believe it will work. In fact once you have that you 
> could
> simply use the graphics inset in the usual way to insert your .py file, that 
> is,
> no need for an external material template.

Makes sense, but then what are the external material templates actually meant 
to be used for?

J
  
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Re: Python-generated diagram as external material

[Guenter Milde]

On 2010-03-11, John K wrote:

>> I think you need to define an input format and a .py -> .pdf converter which
>> runs the python interpreter on your file.

This is an alternative way to the "external inset".

...

>> Try the way I described above: defining the file format and converter
>> under the menu : Tools> Preferences...> File Handling.

> I can define a new Python file format, but strangely, no matter what I
> do the "Add" button in the converters section is greyed out. I can only
> create the converter by editing and saving over an existing converter
> in the list.

The UI is somewhat strange in this area. You can modify an existing
converter + its input/output formats and it will be saved as a new
converter.

Consider a name more specific than Python as input format description,
as there could be also Python scripts requiring other processing or
resulting in a different output format.

>> Once you have that I believe it will work. In fact once you have that
>> you could simply use the graphics inset in the usual way to insert
>> your .py file, that is, no need for an external material template.

> Makes sense, but then what are the external material templates actually
> meant to be used for?

There is external material that does not fit in the converter tool
paradiga. Also, with 'external inset' you can specify parameters in the
LyX document. If these are not needed, defining a Converter is simpler
and enables a preview.

Günter

Python-generated diagram as external material

[John K]

I am trying to auto-generate a diagram from a Python script in my Lyx document 
using the External Material function. I have created a Python script called 
myscript.py which generates a diagram and saves it to myscript.pdf. I am 
trying to make Lyx run my script to generate the diagram when I export my 
document to PDF.

I added the following to the Lyx external_templates file:

Template Python
GuiName Python: $$AbsOrRelPathParent$$Basename
HelpText
Python diagram.
HelpTextEnd
InputFormat *
FileFilter *.py
AutomaticProduction true
Preview Graphics
Format PDFLaTeX
Product \\includegraphics{$$AbsPath$$Basename.pdf}
Requirement graphicx
UpdateCommand python $$AbsPath$$Basename.py
UpdateFormat pdf
UpdateResult $$AbsPath$$Basename.pdf
Requirement graphicx
ReferencedFile pdflatex $$AbsPath$$Basename.pdf
FormatEnd
TemplateEnd

However, when I insert the Python script in Lyx, it draws a box that says 
Error converting to loadable format. If I try exporting to PDF using 
pdflatex, I get the following error:

Missing $ inserted. Missing { inserted. I've inserted a begin-math/end-math 
symbol since I think you left one out. Proceed, with fingers crossed.

If I export to Latex using pdflatex, it seems to export correctly, and my text 
file contains something like this:

begin{document}
\includegraphics{C:/Documents and Settings/MyUsername/Desktop/myscript.pdf}
\end{document}

However, it doesn't run my update command, i.e. doesn't run the Python script. 
(I've even tried changing my update command to things like echo test 
output.txt but I can't seem to get any commands to run at all.)

Any ideas what I am doing wrong? I've tried on Lyx 1.6.3 and 1.6.5-1 on Windows 
XP.

J
  
_
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Re: Python-generated diagram as external material

[Helge Hafting]

John K wrote:



I am trying to auto-generate a diagram from a Python script in my Lyx document using the External 
Material function. I have created a Python script called myscript.py which generates a 
diagram and saves it to myscript.pdf. I am trying to make Lyx run my script to generate the 
diagram when I export my document to PDF.

I added the following to the Lyx external_templates file:

Template Python
GuiName Python: $$AbsOrRelPathParent$$Basename
HelpText
Python diagram.
HelpTextEnd
InputFormat *
FileFilter *.py
AutomaticProduction true
Preview Graphics
Format PDFLaTeX
Product \\includegraphics{$$AbsPath$$Basename.pdf}
Requirement graphicx
UpdateCommand python $$AbsPath$$Basename.py
UpdateFormat pdf
UpdateResult $$AbsPath$$Basename.pdf
Requirement graphicx
ReferencedFile pdflatex $$AbsPath$$Basename.pdf
FormatEnd
TemplateEnd

However, when I insert the Python script in Lyx, it draws a box that says Error 
converting to loadable format.
This isn't critical, it merely means you won't get a preview within LyX 
because of a failure to convert to something displayable. (png, I believe.)


Of course, this may also be a symptom of what's wrong with the main 
conversion.



If I try exporting to PDF using pdflatex, I get the following error:

Missing $ inserted. Missing { inserted. I've inserted a begin-math/end-math symbol 
since I think you left one out. Proceed, with fingers crossed.

If I export to Latex using pdflatex, it seems to export correctly, and my text 
file contains something like this:

begin{document}
\includegraphics{C:/Documents and Settings/MyUsername/Desktop/myscript.pdf}
\end{document}

However, it doesn't run my update command, i.e. doesn't run the Python script. (I've even 
tried changing my update command to things like echo test output.txt but I 
can't seem to get any commands to run at all.)

That is the problem, and I guess it explains why everything else goes 
wrong too.


First thing to check: is python in the path? I.e. can you give the 
command python filename.py on the command line - will that work?


If python isn't in the path, then LyX won't find it.

If this succeed, will the latex export then work, as long as  the 
manually converted file is present?




Any ideas what I am doing wrong? I've tried on Lyx 1.6.3 and 1.6.5-1 on Windows 
XP.


Another wild guess: You have a path with spaces in it, e.g. Documents 
and Settings. Some versions of LyX can't deal with that. Some can, but 
you have to take care when a path is passed to external utilities (such 
as python) Otherwise, you risk that:


python C:\documents and settings\folder\file.py
becomes
python C:\documents and settings\folder\file.py
and the latter just won't work.

To check if you have space problems, copy the document and all files
to some space-free path such as C:\test\
See if that changes anything.

Helge Hafting

Python-generated diagram as external material

[John K]

I am trying to auto-generate a diagram from a Python script in my Lyx document 
using the External Material function. I have created a Python script called 
myscript.py which generates a diagram and saves it to myscript.pdf. I am 
trying to make Lyx run my script to generate the diagram when I export my 
document to PDF.

I added the following to the Lyx external_templates file:

Template Python
GuiName Python: $$AbsOrRelPathParent$$Basename
HelpText
Python diagram.
HelpTextEnd
InputFormat *
FileFilter *.py
AutomaticProduction true
Preview Graphics
Format PDFLaTeX
Product \\includegraphics{$$AbsPath$$Basename.pdf}
Requirement graphicx
UpdateCommand python $$AbsPath$$Basename.py
UpdateFormat pdf
UpdateResult $$AbsPath$$Basename.pdf
Requirement graphicx
ReferencedFile pdflatex $$AbsPath$$Basename.pdf
FormatEnd
TemplateEnd

However, when I insert the Python script in Lyx, it draws a box that says 
Error converting to loadable format. If I try exporting to PDF using 
pdflatex, I get the following error:

Missing $ inserted. Missing { inserted. I've inserted a begin-math/end-math 
symbol since I think you left one out. Proceed, with fingers crossed.

If I export to Latex using pdflatex, it seems to export correctly, and my text 
file contains something like this:

begin{document}
\includegraphics{C:/Documents and Settings/MyUsername/Desktop/myscript.pdf}
\end{document}

However, it doesn't run my update command, i.e. doesn't run the Python script. 
(I've even tried changing my update command to things like echo test 
output.txt but I can't seem to get any commands to run at all.)

Any ideas what I am doing wrong? I've tried on Lyx 1.6.3 and 1.6.5-1 on Windows 
XP.

J
  
_
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Re: Python-generated diagram as external material

[Helge Hafting]

John K wrote:



I am trying to auto-generate a diagram from a Python script in my Lyx document using the External 
Material function. I have created a Python script called myscript.py which generates a 
diagram and saves it to myscript.pdf. I am trying to make Lyx run my script to generate the 
diagram when I export my document to PDF.

I added the following to the Lyx external_templates file:

Template Python
GuiName Python: $$AbsOrRelPathParent$$Basename
HelpText
Python diagram.
HelpTextEnd
InputFormat *
FileFilter *.py
AutomaticProduction true
Preview Graphics
Format PDFLaTeX
Product \\includegraphics{$$AbsPath$$Basename.pdf}
Requirement graphicx
UpdateCommand python $$AbsPath$$Basename.py
UpdateFormat pdf
UpdateResult $$AbsPath$$Basename.pdf
Requirement graphicx
ReferencedFile pdflatex $$AbsPath$$Basename.pdf
FormatEnd
TemplateEnd

However, when I insert the Python script in Lyx, it draws a box that says Error 
converting to loadable format.
This isn't critical, it merely means you won't get a preview within LyX 
because of a failure to convert to something displayable. (png, I believe.)


Of course, this may also be a symptom of what's wrong with the main 
conversion.



If I try exporting to PDF using pdflatex, I get the following error:

Missing $ inserted. Missing { inserted. I've inserted a begin-math/end-math symbol 
since I think you left one out. Proceed, with fingers crossed.

If I export to Latex using pdflatex, it seems to export correctly, and my text 
file contains something like this:

begin{document}
\includegraphics{C:/Documents and Settings/MyUsername/Desktop/myscript.pdf}
\end{document}

However, it doesn't run my update command, i.e. doesn't run the Python script. (I've even 
tried changing my update command to things like echo test output.txt but I 
can't seem to get any commands to run at all.)

That is the problem, and I guess it explains why everything else goes 
wrong too.


First thing to check: is python in the path? I.e. can you give the 
command python filename.py on the command line - will that work?


If python isn't in the path, then LyX won't find it.

If this succeed, will the latex export then work, as long as  the 
manually converted file is present?




Any ideas what I am doing wrong? I've tried on Lyx 1.6.3 and 1.6.5-1 on Windows 
XP.


Another wild guess: You have a path with spaces in it, e.g. Documents 
and Settings. Some versions of LyX can't deal with that. Some can, but 
you have to take care when a path is passed to external utilities (such 
as python) Otherwise, you risk that:


python C:\documents and settings\folder\file.py
becomes
python C:\documents and settings\folder\file.py
and the latter just won't work.

To check if you have space problems, copy the document and all files
to some space-free path such as C:\test\
See if that changes anything.

Helge Hafting

Python-generated diagram as "external material"

[John K]

I am trying to auto-generate a diagram from a Python script in my Lyx document 
using the "External Material" function. I have created a Python script called 
"myscript.py" which generates a diagram and saves it to "myscript.pdf". I am 
trying to make Lyx run my script to generate the diagram when I export my 
document to PDF.

I added the following to the Lyx external_templates file:

Template Python
GuiName "Python: $$AbsOrRelPathParent$$Basename"
HelpText
Python diagram.
HelpTextEnd
InputFormat "*"
FileFilter "*.py"
AutomaticProduction true
Preview Graphics
Format PDFLaTeX
Product "\\includegraphics{$$AbsPath$$Basename.pdf}"
Requirement "graphicx"
UpdateCommand "python $$AbsPath$$Basename.py"
UpdateFormat pdf
UpdateResult "$$AbsPath$$Basename.pdf"
Requirement "graphicx"
ReferencedFile pdflatex "$$AbsPath$$Basename.pdf"
FormatEnd
TemplateEnd

However, when I insert the Python script in Lyx, it draws a box that says 
"Error converting to loadable format". If I try exporting to PDF using 
pdflatex, I get the following error:

"Missing $ inserted. Missing { inserted. I've inserted a begin-math/end-math 
symbol since I think you left one out. Proceed, with fingers crossed."

If I export to Latex using pdflatex, it seems to export correctly, and my text 
file contains something like this:

begin{document}
\includegraphics{C:/Documents and Settings/MyUsername/Desktop/myscript.pdf}
\end{document}

However, it doesn't run my update command, i.e. doesn't run the Python script. 
(I've even tried changing my update command to things like "echo test> 
output.txt" but I can't seem to get any commands to run at all.)

Any ideas what I am doing wrong? I've tried on Lyx 1.6.3 and 1.6.5-1 on Windows 
XP.

J
  
_
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Re: Python-generated diagram as "external material"

[Helge Hafting]

John K wrote:



I am trying to auto-generate a diagram from a Python script in my Lyx document using the "External 
Material" function. I have created a Python script called "myscript.py" which generates a 
diagram and saves it to "myscript.pdf". I am trying to make Lyx run my script to generate the 
diagram when I export my document to PDF.

I added the following to the Lyx external_templates file:

Template Python
GuiName "Python: $$AbsOrRelPathParent$$Basename"
HelpText
Python diagram.
HelpTextEnd
InputFormat "*"
FileFilter "*.py"
AutomaticProduction true
Preview Graphics
Format PDFLaTeX
Product "\\includegraphics{$$AbsPath$$Basename.pdf}"
Requirement "graphicx"
UpdateCommand "python $$AbsPath$$Basename.py"
UpdateFormat pdf
UpdateResult "$$AbsPath$$Basename.pdf"
Requirement "graphicx"
ReferencedFile pdflatex "$$AbsPath$$Basename.pdf"
FormatEnd
TemplateEnd

However, when I insert the Python script in Lyx, it draws a box that says "Error 
converting to loadable format".
This isn't critical, it merely means you won't get a preview within LyX 
because of a failure to convert to something displayable. (png, I believe.)


Of course, this may also be a symptom of what's wrong with the main 
conversion.



If I try exporting to PDF using pdflatex, I get the following error:

"Missing $ inserted. Missing { inserted. I've inserted a begin-math/end-math symbol 
since I think you left one out. Proceed, with fingers crossed."

If I export to Latex using pdflatex, it seems to export correctly, and my text 
file contains something like this:

begin{document}
\includegraphics{C:/Documents and Settings/MyUsername/Desktop/myscript.pdf}
\end{document}

However, it doesn't run my update command, i.e. doesn't run the Python script. (I've even 
tried changing my update command to things like "echo test> output.txt" but I 
can't seem to get any commands to run at all.)

That is the problem, and I guess it explains why everything else goes 
wrong too.


First thing to check: is python in the path? I.e. can you give the 
command "python filename.py" on the command line - will that work?


If python isn't in the path, then LyX won't find it.

If this succeed, will the latex export then work, as long as  the 
manually converted file is present?




Any ideas what I am doing wrong? I've tried on Lyx 1.6.3 and 1.6.5-1 on Windows 
XP.


Another wild guess: You have a path with spaces in it, e.g. "Documents 
and Settings". Some versions of LyX can't deal with that. Some can, but 
you have to take care when a path is passed to external utilities (such 
as python) Otherwise, you risk that:


python "C:\documents and settings\folder\file.py"
becomes
python "C:\documents" "and" "settings\folder\file.py"
and the latter just won't work.

To check if you have space problems, copy the document and all files
to some space-free path such as C:\test\
See if that changes anything.

Helge Hafting

Re: Python-generated diagram as external material

[Julien Rioux]

John K  writes:
> I added the following to the Lyx external_templates file:
> 
> Template Python
> GuiName "Python: $$AbsOrRelPathParent$$Basename"
> HelpText
> Python diagram.
> HelpTextEnd
> InputFormat "*"

I think you need to define an input format and a .py -> .pdf converter which
runs the python interpreter on your file.

> FileFilter "*.py"
> AutomaticProduction true
> Preview Graphics
> Format PDFLaTeX
> Product "\\includegraphics{$$AbsPath$$Basename.pdf}"
> Requirement "graphicx"
> UpdateCommand "python $$AbsPath$$Basename.py"

I haven't seen any description for "UpdateCommand" anywhere. Where does that
come from?  It's not in the documentation, or?

> UpdateFormat pdf
> UpdateResult "$$AbsPath$$Basename.pdf"
> Requirement "graphicx"
> ReferencedFile pdflatex "$$AbsPath$$Basename.pdf"
> FormatEnd
> TemplateEnd
> 
> However, when I insert the Python script in Lyx, it draws a box that says
"Error converting to loadable
> format".

Yes, because LyX doesn't know how to convert a python file to a graphics file. 
Try the way I described above: defining the file format and converter under the
menu : Tools > Preferences... > File Handling.

Once you have that I believe it will work.  In fact once you have that you could
simply use the graphics inset in the usual way to insert your .py file, that is,
no need for an external material template.

--
Julien