Differences between revisions 17 and 30 (spanning 13 versions)
⇤ ← Revision 17 as of 2008-02-18 20:33:33 →
Size: 4766
Editor: PhilipJenvey
Comment: added subprocess
← Revision 30 as of 2008-04-27 22:17:55 → ⇥
Size: 7098
Editor: PhilipJenvey
Comment: update mako status
Deletions are marked like this. Additions are marked like this.
Line 3: Line 3:
Pylons (0.9.6.1) on Jython Requirements/TODO
============================================		 Pylons (trunk, 0.9.7) on Jython Requirements/TODO
=================================================
Line 9: Line 9:
  * distutils and setuptools **(Mostly finished, See** `SetuptoolsOnJython`_ **)**   * distutils and setuptools **(distutils is now supported and setuptools-0.6c8 supports jython-trunk, See** `SetuptoolsOnJython`_ ** for more details)**
Line 11: Line 11:
  * Ensure all dependencies' tests pass   * Ensure all dependencies' tests pass. Pylons on jython buildbot: http://pylonshq.com:8014/
Line 15: Line 15:

**nose trunk is now fully supported on Jython**
Line 36: Line 38:
  * Patches to nose for Jython compatibility: http://code.google.com/p/python-nose/issues/detail?id=160
Line 38: Line 42:
All tests, except some which require paste.fixture (Paste is troublesome to import at this point), pass **All tests pass, minus one doctest (that fails due to expecting CPython dict ordering)**
Line 41: Line 45:
Paste, PasteDeploy and PasteScript Paste
Line 45: Line 49:
  * modulefinder module (imported in paste/__init__.py). Jython currently lacks it, and modulefinder relies on reading code objects via marshal.load
Line 49: Line 51:
  * webbrowser module: paste.fixture imports it. Jython doesn't include it. It's a pretty simple module -- though it doesn't seem to work right on Jython when launching a console browser (like lynx or links). I think it's an os.system problem   * paste.script.util.uuid requires the Python 2.3 int/long unification (PEP 237) phase B **(added in r4175)**
Line 51: Line 53:
  * paste.script.util.uuid requires the Python 2.3 int/long unification (PEP 237) phase B   * modulefinder module (imported in paste/__init__.py). Jython currently lacks it, and modulefinder relies on reading code objects via marshal.load **(modulefinder added in r4179)**
Line 53: Line 55:
  Offending code is:   * webbrowser module: paste.fixture imports it, Jython doesn't include it. It's pretty useless without the platform dependent CPython ic module on most environments. Without that, only console based browsers work and Jython's os.system can't redirect their stdin to actually make them usable **(Paste/WebTest trunk now only import webbrowser when it's needed)**
Line 55: Line 57:
  int("00c04fd430c8", 16)
  
  Exception:		   * paste.util.quoting required a quirky fix to re.sub **(fixed in r4343)**
Line 59: Line 59:
  File "/Users/pjenvey/src/java/jython-trunk/dist/Lib/site-packages/PasteScript-1.6.2dev_r7203-py2.3.egg/paste/script/util/uuid.py", line 49, in __init__   * some tests rely on source code encodings (PEP 263) support
Line 61: Line 61:
  ValueError: invalid literal for __int__: 00c04fd430c8   * selectable files: cgiapp selects on files. we can emulate selectable files if the file is backed by a FileChannel, but cgiapp also selects on a subprocess's (with stdout=PIPE) stdout file, which is backed by a StreamIO. We'll probably never be able to fully support this module in Jython

PasteDeploy
-----------
**All tests pass**

PasteScript
-----------
PasteScript imports a number of CPython only modules (like pwd and fcntl) **(now conditionally)**

  * One failing test requires the Cheetah templating language (maybe we'll just skip it)
  * test_egg_finder doesn't seem to have its paths setup correctly

WebOb
-----
All the important tests are passing, the current failures are either due to testing > 2.3 behavior, and one due to cStringIO's repr not matching CPython's

WebTest
-------
**All tests pass**

WebError
--------
**All tests pass**
Line 67: Line 90:
  * compiler module: to parse Python code into AST. The compiler module is mostly pure Python code, but its guts are really the native parser module (which Jython lacks)   * mako has a branches/jython, when combined with the **experimental _ast support in jython-trunk (see http://www.nabble.com/_ast-td16622739.html)** most tests pass
  * There are still issues with some tests relying on source code encodings (PEP 263) support
  * There's an issue with Unicode handling in some cases, because Jython's _ast uses a _ast.Unicode type (unlike CPython). Its 's' value returns a string instead of unicode (unlike CPython)
Line 71: Line 96:
**All tests pass**
Line 73: Line 100:
  * Paste (for paste.fixture)
  * base64.b64encode: might die on an attempting to import b64encode in beaker.crypto.PBKDF2 (at least it does when the tests are run)		   * Paste (for paste.fixture) **can be installed/imported now**
  * base64.b64encode: might die on an attempting to import b64encode in beaker.crypto.PBKDF2 (at least it does when the tests are run) **fixed, b64encode is 2.4 specific, 2.3 backwards compat was added**
Line 80: Line 107:
  * routes
  * simplejson		   * routes **(can be installed/imported now that Paste doesn't blow up)**

  * simplejson **(can be installed now)**

  * webhelpers.textile requires the unicodedata module **now imported only when needed**

  * some tests rely on source code encodings (PEP 263) support

  * the literal object requires a fix for our str/unicode __add__/__radd__ problems
Line 89: Line 123:
  * required a couple fixes dealing with metaclasses **(fixes in r4336, r4339)**

  * some tests rely on source code encodings (PEP 263) support

  * attempts to import xml.parsers.expat.ExpatError

  * uses elementtree which doesn't work (yes I mean the pure python version) due to reliance on xml.parsers.expat
Line 92: Line 134:
  * `SetuptoolsOnJython`_ (actually distutils) currently has trouble installing simplejson, because it attempts to compile its optional C extensions (that help performance). It expects to catch a distutils.errors.CCompilerError if the compilation fails, but Jython dies much earlier: **all simplejson tests pass**
Line 94: Line 136:
  File "/Users/pjenvey/src/java/jython-trunk/dist/Lib/distutils/command/build_ext.py", line 598, in get_ext_filename   * `SetuptoolsOnJython`_ (actually distutils) currently had trouble installing simplejson because it attempts to compile its optional C extensions (that help performance). It expected to catch a distutils.errors.CCompilerError **(fixed in r4157: A CCompilerError is now raised)**
Line 96: Line 138:
  TypeError: cannot concatenate 'str' and 'NoneType' objects
Line 101: Line 142:
  * requires function.func_defaults to be writable and it currently isn't on Jython **(fixed in 4177)**
Line 102: Line 144:
  * requires function.func_defaults to be writable and it currently isn't on Jython
Line 110: Line 151:
  * The `Dialect Refactor II <http://www.sqlalchemy.org/trac/ticket/672>`_ ticket will need to be implemented to properly support using SQLAlchemy via Jython's DBAPI jdbc driver, `zxJDBC <http://jython.org/Project/userguide.html#database-connectivity-in-jython>`_.   * The `Dialect Refactor II <http://www.sqlalchemy.org/trac/ticket/672>`_ ticket will need to be implemented to properly support using SQLAlchemy via Jython's DBAPI jdbc driver, `zxJDBC <http://jython.org/Project/userguide.html#database-connectivity-in-jython>`_. Jason Kirtland has begun working on this.
Line 112: Line 153:
  * Frank Wierzbicki has done some preliminary work on using SQLAlchemy with Jython, info `here <http://groups.google.com/group/sqlalchemy/browse_frm/thread/d60db24fe1683a41/09320033f406d78b?hl=en&lnk=gst>`_, and is scheduled to give a talk at PyCon 2008: "Database development with Jython, SQLAlchemy, and Hibernate"   * Frank Wierzbicki has done some preliminary work on using SQLAlchemy with Jython, info `here <http://groups.google.com/group/sqlalchemy/browse_frm/thread/d60db24fe1683a41/09320033f406d78b?hl=en&lnk=gst>`_, and gave a talk on his preliminary work at PyCon 2008: "Database development with Jython, SQLAlchemy, and Hibernate"
Line 117: Line 158:
  * Jim Baker has already started playing with Genshi on the `Jython modern branch <http://fisheye3.cenqua.com/browse/jython/branches/modern>`_   * Jim Baker started playing with Genshi on Jython. Genshi's Markdown class requires the same str/unicode __add__/__radd__ fix webhelpers needs.

  * Ariane Paola has submitted an application to work on porting TurboGears 2 components to Jython for Google's Summer of Code

  * There's also a Zope on Jython application

Pylons (trunk, 0.9.7) on Jython Requirements/TODO

Installing Pylons and its dependencies

  • distutils and setuptools (distutils is now supported and setuptools-0.6c8 supports jython-trunk, See SetuptoolsOnJython ** for more details)**
  • Ensure all dependencies' tests pass. Pylons on jython buildbot: http://pylonshq.com:8014/

nose

nose trunk is now fully supported on Jython

Pylons projects require nose, but most packages (including Pylons) use nose as their own test runners.

requires:

  • optparse module (added in r4018)
  • a fix for the cell variable (variables used in closures) bug here: http://pylonshq.com/pasties/667 (fixed in r4038)
  • fix for new.instancemethod not allowing a PyType as its class argument (fixed in r4051)
  • fix for inspect.argspec not working (also needed for Pylons, among other things) (fixed in r4053)
  • imp.find_module returned entries in regard to bytecode files instead of .py files when they were available (fixed in r4080)
  • fix type names and class __module__ in doctests (fixed in r4107, 4111)
  • methods weren't always inheriting their inner functions' __name__ and __doc__ (fixed in r4109)
  • compiler package (and compiler requires the parser module which Jython lacks). nose only needs the compiler module to use compiler.consts.CO_GENERATOR; until there's a parser jython will provide a broken compiler module that doesn't import parser (added in r4114)
  • Patches to nose for Jython compatibility: http://code.google.com/p/python-nose/issues/detail?id=160

Routes

All tests pass, minus one doctest (that fails due to expecting CPython dict ordering)

Paste

requires:

  • subprocess module: if it doesn't exist (Python 2.3) it uses a version copied over from CPython 2.4 (paste.util.subprocess24) (added in r4150)
  • paste.script.util.uuid requires the Python 2.3 int/long unification (PEP 237) phase B (added in r4175)
  • modulefinder module (imported in paste/__init__.py). Jython currently lacks it, and modulefinder relies on reading code objects via marshal.load (modulefinder added in r4179)
  • webbrowser module: paste.fixture imports it, Jython doesn't include it. It's pretty useless without the platform dependent CPython ic module on most environments. Without that, only console based browsers work and Jython's os.system can't redirect their stdin to actually make them usable (Paste/WebTest trunk now only import webbrowser when it's needed)
  • paste.util.quoting required a quirky fix to re.sub (fixed in r4343)
  • some tests rely on source code encodings (PEP 263) support
  • selectable files: cgiapp selects on files. we can emulate selectable files if the file is backed by a FileChannel, but cgiapp also selects on a subprocess's (with stdout=PIPE) stdout file, which is backed by a StreamIO. We'll probably never be able to fully support this module in Jython

PasteDeploy

All tests pass

PasteScript

PasteScript imports a number of CPython only modules (like pwd and fcntl) (now conditionally)

  • One failing test requires the Cheetah templating language (maybe we'll just skip it)
  • test_egg_finder doesn't seem to have its paths setup correctly

WebOb

All the important tests are passing, the current failures are either due to testing > 2.3 behavior, and one due to cStringIO's repr not matching CPython's

WebTest

All tests pass

WebError

All tests pass

Mako

requires:

  • mako has a branches/jython, when combined with the experimental _ast support in jython-trunk (see http://www.nabble.com/_ast-td16622739.html) most tests pass
  • There are still issues with some tests relying on source code encodings (PEP 263) support
  • There's an issue with Unicode handling in some cases, because Jython's _ast uses a _ast.Unicode type (unlike CPython). Its 's' value returns a string instead of unicode (unlike CPython)

Beaker

All tests pass

requires:

  • Paste (for paste.fixture) can be installed/imported now
  • base64.b64encode: might die on an attempting to import b64encode in beaker.crypto.PBKDF2 (at least it does when the tests are run) fixed, b64encode is 2.4 specific, 2.3 backwards compat was added

WebHelpers

requires:

  • routes (can be installed/imported now that Paste doesn't blow up)
  • simplejson (can be installed now)
  • webhelpers.textile requires the unicodedata module now imported only when needed
  • some tests rely on source code encodings (PEP 263) support
  • the literal object requires a fix for our str/unicode __add__/__radd__ problems

FormEncode

requires:

  • gettext (which requires the locale module, which Jython lacks) (both were added in r4077, 4084)
  • required a couple fixes dealing with metaclasses (fixes in r4336, r4339)
  • some tests rely on source code encodings (PEP 263) support
  • attempts to import xml.parsers.expat.ExpatError
  • uses elementtree which doesn't work (yes I mean the pure python version) due to reliance on xml.parsers.expat

simplejson

all simplejson tests pass

  • SetuptoolsOnJython (actually distutils) currently had trouble installing simplejson because it attempts to compile its optional C extensions (that help performance). It expected to catch a distutils.errors.CCompilerError (fixed in r4157: A CCompilerError is now raised)

decorator

  • requires function.func_defaults to be writable and it currently isn't on Jython (fixed in 4177)
  • Note: decorators aren't currently supported in Jython, however the decorator module doesn't actually use decorators (works on CPython 2.3)

Later down the road

SQLAlchemy

  • The Dialect Refactor II ticket will need to be implemented to properly support using SQLAlchemy via Jython's DBAPI jdbc driver, zxJDBC. Jason Kirtland has begun working on this.
  • Frank Wierzbicki has done some preliminary work on using SQLAlchemy with Jython, info here, and gave a talk on his preliminary work at PyCon 2008: "Database development with Jython, SQLAlchemy, and Hibernate"

Turbogears 2

  • Jim Baker started playing with Genshi on Jython. Genshi's Markdown class requires the same str/unicode __add__/__radd__ fix webhelpers needs.
  • Ariane Paola has submitted an application to work on porting TurboGears 2 components to Jython for Google's Summer of Code
  • There's also a Zope on Jython application

PylonsOnJython (last edited 2009-09-14 22:04:24 by PhilipJenvey)