virtualenv和Maya

Question

我試圖設置virtualenv指向Maya 2013的可執行文件，所以我可以在shell中運行它的單元測試。 Maya使用位於/usr/autodesk/maya/bin/mayapy的自定義python 2.6可執行文件。我得到這些錯誤：

$ virtualenv -p /usr/autodesk/maya/bin/mayapy mayapy 
Running virtualenv with interpreter /usr/autodesk/maya/bin/mayapy 
PYTHONHOME is set. You *must* activate the virtualenv before using it 
Traceback (most recent call last): 
    File "/usr/local/lib/python2.6/dist-packages/virtualenv.py", line 2577, in <module> 
    main() 
    File "/usr/local/lib/python2.6/dist-packages/virtualenv.py", line 979, in main 
    no_pip=options.no_pip) 
    File "/usr/local/lib/python2.6/dist-packages/virtualenv.py", line 1081, in create_environment 
    site_packages=site_packages, clear=clear)) 
    File "/usr/local/lib/python2.6/dist-packages/virtualenv.py", line 1289, in install_python 
    writefile(site_filename_dst, SITE_PY) 
    File "/usr/local/lib/python2.6/dist-packages/virtualenv.py", line 445, in writefile 
    f = open(dest, 'wb') 
IOError: [Errno 2] No such file or directory: 'mayapy/lib/python26.zip/site.py' 

我讀過virtualenv's page的virtualenv -h輸出，一些基本的virtualenv writeups像this one，並搜查谷歌和SO兩者的virtualenv和Maya +的virtualenv配對，都無濟於事。

下面是詳細的輸出：

$ virtualenv -vv -p /usr/autodesk/maya/bin/mayapy mayapy 
Running virtualenv with interpreter /usr/autodesk/maya/bin/mayapy 
PYTHONHOME is set. You *must* activate the virtualenv before using it 
Directory mayapy/lib/python2.6 already exists 
Symlinking Python bootstrap modules 
    Cannot import bootstrap module: os 
    Ignoring built-in bootstrap module: posix 
    Cannot import bootstrap module: posixpath 
    Cannot import bootstrap module: nt 
    Cannot import bootstrap module: ntpath 
    Cannot import bootstrap module: genericpath 
    Cannot import bootstrap module: fnmatch 
    Cannot import bootstrap module: locale 
    Cannot import bootstrap module: encodings 
    Cannot import bootstrap module: codecs 
    Cannot import bootstrap module: stat 
    Cannot import bootstrap module: UserDict 
    File mayapy/lib/python2.6/lib-dynload/readline.so already exists 
    Cannot import bootstrap module: copy_reg 
    Cannot import bootstrap module: types 
    Cannot import bootstrap module: re 
    Cannot import bootstrap module: sre 
    Cannot import bootstrap module: sre_parse 
    Cannot import bootstrap module: sre_constants 
    Cannot import bootstrap module: sre_compile 
    File mayapy/lib/python2.6/lib-dynload/zlib.so already exists 
    Cannot import bootstrap module: warnings 
    Cannot import bootstrap module: linecache 
    Cannot import bootstrap module: _abcoll 
    Cannot import bootstrap module: abc 
Directory mayapy/lib/python2.6/site-packages already exists 
Writing mayapy/lib/python26.zip/site.py 
Traceback (most recent call last): 
    File "/usr/local/lib/python2.6/dist-packages/virtualenv.py", line 2577, in <module> 
    main() 
    File "/usr/local/lib/python2.6/dist-packages/virtualenv.py", line 979, in main 
    no_pip=options.no_pip) 
    File "/usr/local/lib/python2.6/dist-packages/virtualenv.py", line 1081, in create_environment 
    site_packages=site_packages, clear=clear)) 
    File "/usr/local/lib/python2.6/dist-packages/virtualenv.py", line 1289, in install_python 
    writefile(site_filename_dst, SITE_PY) 
    File "/usr/local/lib/python2.6/dist-packages/virtualenv.py", line 445, in writefile 
    f = open(dest, 'wb') 
IOError: [Errno 2] No such file or directory: 'mayapy/lib/python26.zip/site.py' 

Answer 1

下載最新的virtualenv並與Python版本調用它的virtualenv要虛擬化：

/usr/autodesk/maya/bin/mayapy where/i/saved/virtualenv mayapy 

Answer 2

的替代方案，是很好的不搞亂單元測試你的Maya運行時環境是在maya.standalone的一個實例中運行你的測試。如果你的測試都包括這樣的事情：

import maya.standalone 
try: 
    maya.standalone.initialize() 
except: 
    pass # initialize raises if you call it more than once, but it's harmless if you catch it. 

可以從mayapy intepreter沒有GUI模式下運行Maya中運行它們。