调用python文件时出现python 2.6 import错误

Question

运行python文件时出现以下错误：

Traceback (most recent call last):
 File "MySimulation.py", line 14, in <module>
    from random import *
  File "/usr/local/lib/python2.6/random.py", line 48, in <module>
    from binascii import hexlify as _hexlify
ImportError: No such file or directory

有解决方案吗？

Answer 1

来自help(binascii)。

Help on built-in module binascii:

NAME
    binascii - Conversion between binary data and ASCII

FILE
    (built-in)

CLASSES
    exceptions.Exception(exceptions.BaseException)
        Error
        Incomplete

    class Error(exceptions.Exception)
     |  Method resolution order:
     |      Error
     |      exceptions.Exception
     |      exceptions.BaseException
     |      __builtin__.object
     |
     |  Data descriptors defined here:
     |
     |  __weakref__

binascii是内置模块。您的Python库似乎安装在/usr/local/lib中。所以，我猜你自己建了它。您确定，它成功构建了binascii模块吗？那可能是错误。

Answer 2

如果您从源代码编译Python，则可以创建一个没有binascii模块的可用Python。我怀疑构建Python时的输出是这样的：

Python build finished, but the necessary bits to build these modules were not found:
_bsddb             _tkinter           bsddb185        
sunaudiodev                                           
To find the necessary bits, look in setup.py in detect_modules() for the module's name.

Failed to build these modules:
_ctypes            _curses            _curses_panel   
_hashlib           _multiprocessing   _sqlite3        
_ssl               binascii           bz2             
dbm                gdbm               readline        
zlib  

您可能还会看到/usr/bin/ld: cannot find -lz。

问题在于binascii取决于zlib。您需要确保链接器找到zlib：

Answer 3

安装binascii。如果已安装，请确保PYTHONPATH包含其安装位置。