Home > Backend Development > Python Tutorial > python sys模块sys.path使用方法示例

python sys模块sys.path使用方法示例

WBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWB
Release: 2016-06-06 11:28:10
Original
1274 people have browsed it

python sys模块包含了与python解释器和它的环境有关的函数,这个你可以通过dir(sys)来查看他里面的方法和成员属性

代码如下:


import sys
print dir(sys)

result:

代码如下:


['__displayhook__', '__doc__', '__excepthook__', '__name__', '__package__', '__stderr__', '__stdin__', '__stdout__', '_clear_type_cache', '_current_frames', '_getframe', '_mercurial', 'api_version', 'argv', 'builtin_module_names', 'byteorder', 'call_tracing', 'callstats', 'copyright', 'displayhook', 'dllhandle', 'dont_write_bytecode', 'exc_clear', 'exc_info', 'exc_type', 'excepthook', 'exec_prefix', 'executable', 'exit', 'flags', 'float_info', 'float_repr_style', 'getcheckinterval', 'getdefaultencoding', 'getfilesystemencoding', 'getprofile', 'getrecursionlimit', 'getrefcount', 'getsizeof', 'gettrace', 'getwindowsversion', 'hexversion', 'long_info', 'maxint', 'maxsize', 'maxunicode', 'meta_path', 'modules', 'path', 'path_hooks', 'path_importer_cache', 'platform', 'prefix', 'py3kwarning', 'setcheckinterval', 'setprofile', 'setrecursionlimit', 'settrace', 'stderr', 'stdin', 'stdout', 'subversion', 'version', 'version_info', 'warnoptions', 'winver']

代码如下:


import sys
print sys.path
result:
['C:\\Documents and Settings\\username\\My Documents\\Aptana Studio 3 Workspace\\Python_Test_Project\\src', 'C:\\Documents and Settings\\username\\My Documents\\Aptana Studio 3 Workspace\\Python_Test_Project\\src', 'C:\\Python27', 'C:\\Python27\\DLLs', 'C:\\Python27\\lib', 'C:\\Python27\\lib\\lib-tk', 'C:\\Python27\\lib\\plat-win', 'C:\\Python27\\lib\\site-packages', 'C:\\Python27\\lib\\site-packages\\wx-2.8-msw-unicode', 'C:\\WINDOWS\\system32\\python27.zip']

里面有个 sys.path属性。他是一个list.默然情况下python导入文件或者模块的话,他会先在sys.path里找模块的路径。如果没有的话,程序就会报错。
所以我们一般自己写程序的话。最好把自己的模块路径给加到当前模块扫描的路径里,eg: sys.path.append('你的模块的名称'),这样程序就不会
因为找不到模块而报错。。

Related labels:
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template