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From: Dominique O. <do...@da...> - 2004-03-02 06:30:33
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Just wanted to signal some path issues with the current
Windows installer. I have looked in the mailing list, but
haven't seen anyone having the same problem.
In both Windows 2000 and XP, installation of Matplotlib 0.50
results in the following directory hierarchy in my main Python
directory c:\Python23\Lib\site-packages (Enthought Edition):
FontTools/
fontTools/
sstruct.py
ttLib/
When i try to import the Agg backend:
import matplotlib
matplotlib.use( 'Agg' )
from matplotlib.matlab import *
it says it cannot import 'fontTools' (lowercase f, uppercase T).
Changing the name of the top directory (FontTools) to 'fontTools'
doesn't solve it of course, since what it is looking for is the
innermost one. Hence i must move the 'fontTools' directory one
level up. Next, it can import ttLib, scans my TTFPATH, but breaks
down (after litterally one zillion messages) saying that 'module'
has no attribute 'SFNTReader'. It is in fact trying to import
sfnt and is stuck in the __init__() of Class TTFont. Drastically
reducing my TTFPATH, i see that the error is in fact coming from
the fact that it cannot import module 'sstruct' in sfnt.py.
That stuns me. A 'from fontTools import sstruct' would do. How
comes Python isn't looking recursively into directories? I guess
moving everything to the top level isn't a good idea. Also,
still in sfnt.py, the 'import struct' works, but i have no clue
where it finds this one; a search was unsuccessful. Anyhow,
including 'c:\Python23\fontTools' into the PYTHONPATH solves it
but i thought directories would be parsed recursively.
Also, can you only use savefig() with the Agg backend? show()
isn't popping any window.
As they told me to at SuSE, i'm having a lot of fun.
Dominique
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From: John H. <jdh...@ac...> - 2004-03-02 13:19:08
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>>>>> "Dominique" == Dominique Orban <do...@da...> writes:
Dominique> Just wanted to signal some path issues with the current
Dominique> Windows installer. I have looked in the mailing list,
Dominique> but haven't seen anyone having the same problem.
Dominique> In both Windows 2000 and XP, installation of Matplotlib
Dominique> 0.50 results in the following directory hierarchy in my
Dominique> main Python directory c:\Python23\Lib\site-packages
Dominique> (Enthought Edition):
Dominique> FontTools/ fontTools/ sstruct.py ttLib/
Critically, you should also have
c:\Python23\Lib\site-packages\FontTools.pth. I am pretty certain it
is in the windows installer. This file should contain one line, which
reads simply
FontTools
If you don't have it I would like to know!
ttfquery and FontTools are packages to enable cross platform
font-finding. I am very interested in factoring out this dependency
since it complicates installation (as you are seeing). [ Perry, if
anyone in your group is still interested in this, there is a
reasonably well documented example in cvs examples/ftface_props.py
that shows how to access all the relevant freetype attributes (family
name, is italics, etc) using the matplotlib.ft2face module ]
Dominique> it says it cannot import 'fontTools' (lowercase f,
Dominique> uppercase T). Changing the name of the top directory
Dominique> (FontTools) to 'fontTools' doesn't solve it of course,
Dominique> since what it is looking for is the innermost
Dominique> one. Hence i must move the 'fontTools' directory one
Dominique> level up. Next, it can import ttLib, scans my TTFPATH,
Dominique> but breaks down (after litterally one zillion messages)
Dominique> saying that 'module' has no attribute 'SFNTReader'. It
Dominique> is in fact trying to import sfnt and is stuck in the
Dominique> __init__() of Class TTFont. Drastically reducing my
Dominique> TTFPATH, i see that the error is in fact coming from
Dominique> the fact that it cannot import module 'sstruct' in
Dominique> sfnt.py.
All of this is consistent with a missing FontTools.pth. ttfquery will
try and load each windows font, but catches all exceptions and
continues. So you'll get an exception *for each font* the first time
you load ttfquery if something is wrong with your install. After you
have fixed fontools, be sure to remove site-packages/font.cache so
ttfquery can regenerate the font cache.
Dominique> That stuns me. A 'from fontTools import sstruct' would
Dominique> do. How comes Python isn't looking recursively into
Dominique> directories? I guess moving everything to the top level
Dominique> isn't a good idea. Also, still in sfnt.py, the 'import
Dominique> struct' works, but i have no clue where it finds this
Dominique> one; a search was unsuccessful. Anyhow, including
Dominique> 'c:\Python23\fontTools' into the PYTHONPATH solves it
Dominique> but i thought directories would be parsed recursively.
Dominique> Also, can you only use savefig() with the Agg backend?
Dominique> show() isn't popping any window.
Agg is a pure image backend - ie, it only produces image output. In
the next release of matplotlib (this week) there will are 2 GUI
backends that use agg for rendering GtkAgg and TkAgg, both of which
are compiled into the windows installer.
Dominique> As they told me to at SuSE, i'm having a lot of fun.
You mean battling the hairy windows beast?
JDH
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From: Paul B. <ba...@st...> - 2004-03-02 15:18:59
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John Hunter wrote: > > ttfquery and FontTools are packages to enable cross platform > font-finding. I am very interested in factoring out this dependency > since it complicates installation (as you are seeing). [ Perry, if > anyone in your group is still interested in this, there is a > reasonably well documented example in cvs examples/ftface_props.py > that shows how to access all the relevant freetype attributes (family > name, is italics, etc) using the matplotlib.ft2face module ] Hi John, I'm currently working on a replacment for FontTools. I hope to have something out in the next day or so. -- Paul -- Paul Barrett, PhD Space Telescope Science Institute Phone: 410-338-4475 ESS/Science Software Branch FAX: 410-338-4767 Baltimore, MD 21218 |
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From: Dominique O. <do...@da...> - 2004-03-02 14:00:05
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* On Tue, 02 Mar 2004, John Hunter wrote: > Critically, you should also have > c:\Python23\Lib\site-packages\FontTools.pth. I am pretty certain it > is in the windows installer. This file should contain one line, which > reads simply > > FontTools > > If you don't have it I would like to know! I don't have it actually. It is on neither of my Windows installs. Can i just create it? I haven't seen any other user complain about this. Could this come from an upgrade of matplotlib? During the upgrade, it seems to be backing up stuff but who knows what it is doing exactly. > All of this is consistent with a missing FontTools.pth. ttfquery will > try and load each windows font, but catches all exceptions and > continues. So you'll get an exception *for each font* the first time > you load ttfquery if something is wrong with your install. After you > have fixed fontools, be sure to remove site-packages/font.cache so > ttfquery can regenerate the font cache. The font.cache is in site-packages/ttfquery, i presume this is correct? > Agg is a pure image backend - ie, it only produces image output. In > the next release of matplotlib (this week) there will are 2 GUI > backends that use agg for rendering GtkAgg and TkAgg, both of which > are compiled into the windows installer. Great! Thanks much, Dominique |
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From: John H. <jdh...@ac...> - 2004-03-02 14:56:24
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>>>>> "Dominique" == Dominique Orban <do...@da...> writes:
Dominique> I don't have it actually. It is on neither of my
Dominique> Windows installs. Can i just create it?
OK, this is a bug in the windows installer - fixed for next release.
Yes, just create it.
Dominique> I haven't seen any other user complain about
Dominique> this. Could this come from an upgrade of matplotlib?
Dominique> During the upgrade, it seems to be backing up stuff but
Dominique> who knows what it is doing exactly.
Well, you would only notice it if 1) you haven't installed FontTools
before 2) you are using windows 3) you are trying to use on of the
FontTools dependent backends (Agg, GD) and 4) you are kind enough to
report the problem.
Dominique> The font.cache is in site-packages/ttfquery, i presume
Dominique> this is correct?
After you fix the FontTools.pth problem erase this file and it will be
automagically recreated by ttfquery.
JDH
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From: Dominique O. <do...@da...> - 2004-03-02 15:10:30
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* On Tue, 02 Mar 2004, John Hunter wrote: > > >>>>> "Dominique" == Dominique Orban <do...@da...> writes: > > Dominique> I don't have it actually. It is on neither of my > Dominique> Windows installs. Can i just create it? > > OK, this is a bug in the windows installer - fixed for next release. > Yes, just create it. Allright thanks. In Linux, i can compile the new matplotlib with gcc 3.3. I notice the same problem with fontTools. This time i do have a FontTools.pth in my source directory, but it isn't copied to /whatever/python2.3/site-packages when i run python setup.py install. Now it doesn't find _backend_agg. Sorry to be bugging you with all these minor annoyances. Also i notice the 'afm' problem i reported earlier with the PS backend hasn't been fixed. Did you receive my little fix? Dominique |
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From: John H. <jdh...@ac...> - 2004-03-02 15:57:59
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>>>>> "Dominique" == Dominique Orban <do...@da...> writes:
Dominique> Allright thanks. In Linux, i can compile the new
Dominique> matplotlib with gcc 3.3. I notice the same problem
Dominique> with fontTools. This time i do have a FontTools.pth in
Dominique> my source directory, but it isn't copied to
Dominique> /whatever/python2.3/site-packages when i run python
Dominique> setup.py install.
Just copy the file to site-packages. This problem is fixed in CVS but
with Paul's new font finder hopefully it will soon be a non-issue.
Dominique> Now it doesn't find _backend_agg. Sorry to be bugging
Dominique> you with all these minor annoyances.
No problem - I want to fix these problems as soon as possible so keep
them coming.
Did you edit setup.py? You need to set the flags BUILD_AGG and
BUILD_FONTTOOLS. If this doesn't do it for you, please post compile
errors or tracebacks.
Dominique> Also i notice the 'afm' problem i reported earlier with
Dominique> the PS backend hasn't been fixed. Did you receive my
Dominique> little fix?
Thanks for the reminder - it had slipped too low in the pile and I
forgot about it. It's in now.
JDH
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