Python3 Windows环境下httplib2报'module' object is not callable错误求助

环境信息 #

• Python 3.7.4（Windows 32位）
• httplib2 版本 0.20.4（已尝试重装）

脚本代码 #

from httplib2 import httplib2
http = httplib2.Http()
content = http.request("http://mit.edu")[1] 

报错信息 #

uri = httplib2.iri2uri(uri) TypeError: 'module' object is not callable

终端操作过程 #

(mp4) C:\temp\ffmpeg\MP4\dev>python
Python 3.7.4 (tags/v3.7.4:e09359112e, Jul  8 2019, 19:29:22) [MSC v.1916 32 bit (Intel)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import httplib2
>>> httplib2.iri2uri()
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: 'module' object is not callable
>>> quit()

(mp4) C:\temp\ffmpeg\MP4\dev>pip install httplib2
Requirement already satisfied: httplib2 in c:\temp\ffmpeg\mp4\dev\mp4\lib\site-packages (0.20.4)
Requirement already satisfied: pyparsing!=3.0.0,!=3.0.1,!=3.0.2,!=3.0.3,<4,>=2.4.2 in c:\temp\ffmpeg\mp4\dev\mp4\lib\site-packages (from httplib2) (3.0.9)

(mp4) C:\temp\ffmpeg\MP4\dev>python
Python 3.7.4 (tags/v3.7.4:e09359112e, Jul  8 2019, 19:29:22) [MSC v.1916 32 bit (Intel)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> from httplib2 import httplib2
>>> http = httplib2.Http()
>>> content = http.request("http://mit.edu")[1]
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "C:\temp\ffmpeg\MP4\dev\httplib2\__init__.py", line 1426, in request
    uri = httplib2.iri2uri(uri)
TypeError: 'module' object is not callable

解决方案 #

问题核心是当前脚本目录下存在同名的httplib2文件夹/模块，导致导入的不是系统安装的官方库，而是本地的模块。从报错路径C:\temp\ffmpeg\MP4\dev\httplib2\__init__.py可直接验证这一点。

解决步骤：

1. 检查当前脚本所在目录C:\temp\ffmpeg\MP4\dev，删除或重命名本地的httplib2文件夹。
2. 验证库加载路径：在终端执行import httplib2; print(httplib2.__file__)，确认输出路径指向虚拟环境的site-packages目录下的官方库文件。
3. 改用标准导入方式运行脚本：

import httplib2
http = httplib2.Http()
content = http.request("http://mit.edu")[1]

内容的提问来源于stack exchange，提问作者phill