py2app IOError：[Errno 63] 文件名太长：

Question

我正在尝试使用 python 2.6 在 OS X 10.6 上使用 py2app 打包 PySide 应用程序。

我得到的问题是 py2app 似乎陷入了一个循环并递归地将相同的目录路径附加到其自身上，然后它最终遇到 Python 文件的时间过长 IOError 如上所述。下面是我得到的堆栈跟踪

     copying /Users/mlakewood/Documents/Programming/DataWrangler/build/bdist.macosx-10.6-universal/python2.6-standalone/app/collect/DataWrangler/build/bdist.macosx-10.6-
universal/python2.6-standalone/app/collect/DataWrangler/build/bdist.macosx-10.6-
universal/python2.6-standalone/app/collect/DataWrangler/build/bdist.macosx-10.6-
universal/python2.6-standalone/app/collect/DataWrangler/build/bdist.macosx-10.6-
universal/python2.6-standalone/app/collect/DataWrangler/build/bdist.macosx-10.6-
universal/python2.6-standalone/app/collect/DataWrangler/build/bdist.macosx-10.6-
universal/python2.6-standalone/app/collect/DataWrangler/build/bdist.macosx-10.6-
universal/python2.6-standalone/app/collect/DataWrangler/build/bdist.macosx-10.6-
universal/python2.6-standalone/app/collect/DataWrangler/build/bdist.macosx-10.6-
universal/python2.6-standalone/app/collect/DataWrangler/build/bdist.macosx-10.6-
universal/python2.6-standalone/app/collect/_builtinSuites/__init__.pyc -> /Users/mlakewood/Documents/Programming/DataWrangler/build/bdist.macosx-10.6-universal/python2.6-standalone/app/collect/DataWrangler/build/bdist.macosx-10.6-universal/python2.6-standalone/app/collect/DataWrangler/build/bdist.macosx-10.6-universal/python2.6-standalone/app/collect/DataWrangler/build/bdist.macosx-10.6-universal/python2.6-standalone/app/collect/DataWrangler/build/bdist.macosx-10.6-universal/python2.6-standalone/app/collect/DataWrangler/build/bdist.macosx-10.6-universal/python2.6-standalone/app/collect/DataWrangler/build/bdist.macosx-10.6-universal/python2.6-standalone/app/collect/DataWrangler/build/bdist.macosx-10.6-universal/python2.6-standalone/app/collect/DataWrangler/build/bdist.macosx-10.6-universal/python2.6-standalone/app/collect/DataWrangler/build/bdist.macosx-10.6-universal/python2.6-standalone/app/collect/DataWrangler/build/bdist.macosx-10.6-universal/python2.6-standalone/app/collect/DataWrangler/build/bdist.macosx-10.6-universal/python2.6-standalone/app/collect/_builtinSuites
    Traceback (most recent call last):
      File "/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/py2app/build_app.py", line 579, in _run
        self.run_normal()
      File "/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/py2app/build_app.py", line 650, in run_normal
        self.create_binaries(py_files, pkgdirs, extensions, loader_files)
      File "/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/py2app/build_app.py", line 718, in create_binaries
        self.copy_package_data(item, self.collect_dir)
      File "/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/py2app/build_app.py", line 809, in copy_package_data
        copy_tree(pth, os.path.join(target_dir, fname))
      File "/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/py2app/util.py", line 501, in copy_tree
        dry_run=dry_run, condition=condition))
      File "/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/py2app/util.py", line 501, in copy_tree
        dry_run=dry_run, condition=condition))
      File "/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/py2app/util.py", line 501, in copy_tree
        dry_run=dry_run, condition=condition))

snip...（很多行都和上面和下面一样）

取消剪辑...

File "/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/py2app/util.py", line 501, in copy_tree
    dry_run=dry_run, condition=condition))
  File "/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/py2app/util.py", line 501, in copy_tree
    dry_run=dry_run, condition=condition))
  File "/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/py2app/util.py", line 501, in copy_tree
    dry_run=dry_run, condition=condition))
  File "/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/py2app/util.py", line 504, in copy_tree
    preserve_times, update, dry_run=dry_run)
  File "/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/distutils/file_util.py", line 165, in copy_file
    _copy_file_contents(src, dst)
  File "/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/distutils/file_util.py", line 47, in _copy_file_contents
    fdst = open(dst, 'wb')
IOError: [Errno 63] File name too long: '/Users/mlakewood/Documents/Programming/DataWrangler/build/bdist.macosx-10.6-universal/python2.6-standalone/app/collect/DataWrangler/build/bdist.macosx-10.6-universal/python2.6-standalone/app/collect/DataWrangler/build/bdist.macosx-10.6-universal/python2.6-standalone/app/collect/DataWrangler/build/bdist.macosx-10.6-universal/python2.6-standalone/app/collect/DataWrangler/build/bdist.macosx-10.6-universal/python2.6-standalone/app/collect/DataWrangler/build/bdist.macosx-10.6-universal/python2.6-standalone/app/collect/DataWrangler/build/bdist.macosx-10.6-universal/python2.6-standalone/app/collect/DataWrangler/build/bdist.macosx-10.6-universal/python2.6-standalone/app/collect/DataWrangler/build/bdist.macosx-10.6-universal/python2.6-standalone/app/collect/DataWrangler/build/bdist.macosx-10.6-universal/python2.6-standalone/app/collect/DataWrangler/build/bdist.macosx-10.6-universal/python2.6-standalone/app/collect/DataWrangler/build/bdist.macosx-10.6-universal/python2.6-standalone/app/collect/_builtinSuites/__init__.pyc'
> /System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/distutils/file_util.py(47)_copy_file_contents()
-> fdst = open(dst, 'wb')

下面是我的 setup.py 文件

"""
This is a setup.py script generated by py2applet

Usage:
    python setup.py py2app
"""

from setuptools import setup

APP = ['gui.py']
DATA_FILES = []
OPTIONS = {}
#OPTIONS = {'argv_emulation': True}

setup(
    app=APP,
    data_files=DATA_FILES,
    options={'py2app': OPTIONS},
    setup_requires=['py2app'],
    includes=['PySide']
)

Answer 1

这个问题真的很老了，但是我昨晚遇到了同样的问题并找到了解决方案。结果对我来说，问题是 py2app 试图在另一个包含引用的模块的文件夹内生成 build 和 dist 文件夹的副产品通过正在构建的代码。

由于 py2app 默认将 build 和 dist 文件夹放在当前工作目录中，这意味着如果你'在与您的代码引用的其他模块相同的工作目录中重新编写构建脚本。

我通过使用 py2app 选项强制在下面当前目录的父级中创建 build 和 dist 目录来解决问题，但是您可以将它们放在您选择的任何位置并实现相同的目标：

#!/usr/bin/python
# -*- coding: utf-8 -*-
import py2app
import sys
from distutils.core import setup
from os import getcwd
from pathlib import Path

sys.argv.append('py2app')
setup(app=['<your_code.py>'],
      options=dict(py2app=dict(bdist_base=str(Path(getcwd()).parent)
      + '/build', dist_dir=str(Path(getcwd()).parent) + '/dist')))

Answer 2

检查路径是否有任何可能导致无限递归的符号链接。打开终端应用程序，然后输入：

ls -l /Users/mlakewood/Documents/Programming/DataWrangler/build/bdist.macosx-10.6-universal/python2.6-standalone/app/collect

如果您在执行ls -l 后看到这样的内容：

/Users/mlakewood/Documents/Programming/DataWrangler/build/bdist.macosx-10.6-universal/python2.6-standalone/app/collect -> ../../../../../build/

那就是导致问题的原因。但在脚本搜索文件的方式中，肯定存在导致无限递归循环的原因。