[issue19490] Problem installing matplotlib 1.3.1 with Python 2.7.6rc1 and 3.3.3rc1

2013-11-12 Thread Ned Deily

Ned Deily added the comment:

As proposed above, the built-in Tcl/Tk support has been reverted from the OS X 
installers for 3.3.3rc2 and for 2.7.6 final.  Issue15663 will continue to track 
changes for 3.4.0; the implementation there will have to change for 3.4.0b1. 
I've also opened Issue19558 concerning Piet's suggestion to provide a way to 
obtain info about Tcl and Tk linkage.  This issue can now be closed.

--
resolution:  - fixed
stage:  - committed/rejected
status: open - closed
versions:  -Python 3.4

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[issue19490] Problem installing matplotlib 1.3.1 with Python 2.7.6rc1 and 3.3.3rc1

2013-11-07 Thread Benjamin Peterson

Benjamin Peterson added the comment:

Downgrading, since this is fixed in release branch.

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priority: release blocker - normal

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[issue19490] Problem installing matplotlib 1.3.1 with Python 2.7.6rc1 and 3.3.3rc1

2013-11-05 Thread Ned Deily

Ned Deily added the comment:

After further investigation and deliberation, I believe that we need to revert 
the built-in Tcl/Tk from the OS X installers for 2.7.6 and 3.3.3.  The 
contributing factors:

1. As implemented, we now know that the built-in Tcl/Tk breaks source installs 
and/or binary package installers for PIL/Pillow, matplotlib, and, by extension, 
pandas.  These are all widely-used projects and are important customers of the 
OS X 10.6+ installers.

2. With the recent release of OS X 10.9 Mavericks, there is now a critical 
problem (Issue18458) preventing interactive use of the current maintenance 
release installers (3.3.2 / 2.7.5) on 10.9.  New releases are needed as soon as 
possible to provide fixes for this, a few less critical 10.9 issues, and 
general bug and security fixes for all platforms.  So it is not appropriate to 
delay 3.3.3 or 2.7.6 to attempt to fix the incompatibility issue.  (Fixing the 
built-in Tcl/Tk for 3.4.0b1 or for future maintenance releases are separate 
open items to be tracked on Issue15663.)

3. Updated Tcl/Tk 8.5 installers for OS X are now available from ActiveState 
(8.5.15.1) which include the Tk patch for the 10.9 screen refresh problem 
originally seen with IDLE and patched in the built-in Tks of the 2.7.6rc1_rev1 
and 3.3.3rc1_rev1 installers.

One positive outcome of this is that we are more aware of the interdependencies 
of some of the projects using the python.org installers.  As a result, I am 
adding to the python.org OS X installer testing and release processes 
additional quicklook regression testing using some of these projects so we 
have a better chance of catching issues like this one earlier.

Another positive is that it shows that there are members of the community who 
are taking the time to try pre-releases and that such testing *is* really 
important.  Thank you to all of you who have been doing so and reporting 
issues.  And a particular thank you to Piet for calling attention to this one.

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[issue19490] Problem installing matplotlib 1.3.1 with Python 2.7.6rc1 and 3.3.3rc1

2013-11-05 Thread Piet van Oostrum

Piet van Oostrum added the comment:

I think future versions of Python should add the relevant information about how 
they are linked to Tcl/Tk in sysconfig. This would include the path of the 
include files, the shared libraries and the tcl files. Or a framework location 
on OS X if this is used. The setup.py for extensions that need to link to 
Tcl/Tk can then interrogate this information, and fall back to the current way, 
if it is not available.

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[issue19490] Problem installing matplotlib 1.3.1 with Python 2.7.6rc1 and 3.3.3rc1

2013-11-05 Thread Ned Deily

Ned Deily added the comment:

Piet, yes, I've been thinking of how to do that.  Unfortunately, it can only be 
a hint since, in the case of an installer Python, there is no guarantee that 
the header files on the build machine are available on the installed machine in 
the same location or even at all.

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[issue19490] Problem installing matplotlib 1.3.1 with Python 2.7.6rc1 and 3.3.3rc1

2013-11-04 Thread Ned Deily

New submission from Ned Deily:

Piet van Oostrum (on python-dev and elsewhere) wrote:

I tried to install matplotlib 1.3.1 on the release candidates of Python 2.7.6 
and 3.3.3.
I am on Mac OS X 10.6.8.
Although the installation gave no problems, there is a problem with Tcl/Tk.

The new Pythons have their own embedded Tcl/Tk, but when installing matplotlib 
it links to the Frameworks version of Tcl and TK, not to the embedded version. 
This causes confusion when importing matplotlib.pyplot:

objc[70648]: Class TKApplication is implemented in both 
/Library/Frameworks/Python.framework/Versions/2.7/lib/libtk8.5.dylib and 
/Library/Frameworks/Tk.framework/Versions/8.5/Tk. One of the two will be used. 
Which one is undefined.
objc[70648]: Class TKMenu is implemented in both 
/Library/Frameworks/Python.framework/Versions/2.7/lib/libtk8.5.dylib and 
/Library/Frameworks/Tk.framework/Versions/8.5/Tk. One of the two will be used. 
Which one is undefined.
objc[70648]: Class TKContentView is implemented in both 
/Library/Frameworks/Python.framework/Versions/2.7/lib/libtk8.5.dylib and 
/Library/Frameworks/Tk.framework/Versions/8.5/Tk. One of the two will be used. 
Which one is undefined.
objc[70648]: Class TKWindow is implemented in both 
/Library/Frameworks/Python.framework/Versions/2.7/lib/libtk8.5.dylib and 
/Library/Frameworks/Tk.framework/Versions/8.5/Tk. One of the two will be used. 
Which one is undefined.

And then later it gives a lot of error messages.

So I think it should be linked to the embedded version. For this the matplotlib 
setupext.py should be adapted to find out if there is an embedded Tcl/Tk in the 
Python installation and set the link parameters accordingly. However, the 
installed Python versions (from the DMG's) do not contain the Tcl/Tk header 
files, only the shared library and the tcl files. So I thing the distributed 
Python should also include the Tcl/Tk header files.

https://mail.python.org/pipermail/python-dev/2013-November/129993.html

--
assignee: ned.deily
components: Installation, Macintosh
messages: 202097
nosy: benjamin.peterson, georg.brandl, larry, ned.deily, pietvo
priority: release blocker
severity: normal
status: open
title: Problem installing matplotlib 1.3.1 with Python 2.7.6rc1 and 3.3.3rc1
versions: Python 2.7, Python 3.3, Python 3.4

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[issue19490] Problem installing matplotlib 1.3.1 with Python 2.7.6rc1 and 3.3.3rc1

2013-11-04 Thread Ned Deily

Ned Deily added the comment:

That's unfortunate.  It looks like matplotlib on OS X (darwin) has cpp code 
that interfaces directly with Tk and, hence, needs Tk headers.  Further, for OS 
X (darwin), its setup.py assumes that Tkinter is linked with Tcl and Tk 
installed as frameworks in /Library/Frameworks (for third-party installs) or 
/System/Library/Frameworks (the Apple-supplied ones).  It also appears that 
matplotlib borrowed these assumptions from PIL (the Python Imaging Library 
project) and which have been carried into its fork, Pillow.

The current implementation of the built-in Tcl/Tk for the python OS X 
installers was designed to be standalone for Tkinter's use only.  So it 
currently does not install Tcl and Tk header files.  It also does not install 
Tcl and Tk into /Library/Frameworks so that it will not conflict with existing 
installations, like from ActiveState, that might have additional packages 
installed for real Tcl/Tk applications.  As Piet noted for matplotlib, just 
including header files would not by itself solve the problem for these 
projects.  Their setup*.py files would need to change as well to understand the 
new locations. (Sidenote: I see that at least one of the third-party OS X 
packagers, MacPorts, has a similar problem and patches these files in order for 
their ports of these projects to use the MacPorts-installed Tcl and Tk.)

In anticipation of some problems like this, the rc1 installers ship with two 
versions of _tkinter.so: one linked with the new built-in Tcl/Tk libs and the 
other linked as before with Tcl and Tk frameworks in /Library/Frameworks 
falling back to /System/Library/Frameworks.  The latter _tkinter.so is not on 
the default search path.  It is possible for the user administrator to change 
the installation to always use the old-style _tkinter.so by copying it into 
lib-dynload.  This is documented, although rather obscurely, in the installer 
BuildScript README.  It is also possible to dynamically override at execution 
time by manipulating the Python search path, either by setting PYTHONPATH or 
prepending to sys.path the path to the directory with old-style _tkinter.so.  
This is even more obscurely documented.  The hope was that neither would be 
routinely needed except by expert users for some corner cases.  But matplotlib 
and PIL/Pillow do not fit that category.

There are various options. I want to ponder them for a bit; I'll have an update 
within 24 hours.

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[issue19490] Problem installing matplotlib 1.3.1 with Python 2.7.6rc1 and 3.3.3rc1

2013-11-04 Thread Arfrever Frehtes Taifersar Arahesis

Changes by Arfrever Frehtes Taifersar Arahesis arfrever@gmail.com:


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nosy: +Arfrever

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