Python 3.x Python3导入模块无法根据文档工作
所以我通常使用Python2.7.x，但今天我决定使用Python3，看看我是否想升级。我下载并安装了Python3.6.2，但到目前为止我还不相信 因此，我试图从位于同一目录中的另一个Python脚本/模块导入一些代码。下面是一个例子 目录结构Python 3.x Python3导入模块无法根据文档工作,python-3.x,Python 3.x,所以我通常使用Python2.7.x，但今天我决定使用Python3，看看我是否想升级。我下载并安装了Python3.6.2，但到目前为止我还不相信 因此，我试图从位于同一目录中的另一个Python脚本/模块导入一些代码。下面是一个例子 目录结构 WorkingDir |-- main.py |-- module_a.py main.py import os import module_a if(__name__ == "__main__"): module_a.sayHi() d
WorkingDir
|-- main.py
|-- module_a.py
import os
import module_a
if(__name__ == "__main__"):
module_a.sayHi()
def sayHi():
print("Hi There!")
import os
import module_a
if(__name__ == "__main__"):
module_a.sayHi()
def sayHi():
print("Hi There!")
python main.py
Traceback (most recent call last):
File "main.py", line 2, in <module>
import module_a
ModuleNotFoundError: No module named 'module_a'
PYTHONPATHWorkingDir\uuu init\uuuu.py\uuuu init\uuuu.pyWorkingDir\uu init\uuuuuuuuuuy.py由于其中一位评论者无法再现该问题，我尝试运行他/她正在使用的Python 3版本（Python 3.5.2），但没有出现错误。使用该版本，一切都按预期进行。我相信这是Python3.6.2中的一个bug，并在PythonBug tracker上提交了一份bug报告：它适合我。这里有一个链接它适合我。下面是一个链接，Python3的工作原理如文档中所述。问题是我下载了“嵌入式”Python包，根据文档，该包从Python 3.5开始提供 在python3文档的“findingmodules”部分中，有一句我遗漏了，导致导入错误的句子
To completely override sys.path, create a ._pth file with the same
name as the DLL (python36._pth) or the executable (python._pth) and
specify one line for each path to add to sys.path. The file based on
the DLL name overrides the one based on the executable, which allows
paths to be restricted for any program loading the runtime if desired.
When the file exists, all registry and environment variables are
ignored, isolated mode is enabled, and site is not imported unless one
line in the file specifies import site. Blank paths and lines starting
with # are ignored. Each path may be absolute or relative to the
location of the file. Import statements other than to site are not
permitted, and arbitrary code cannot be specified.
标准Python安装没有使示例按预期工作的
\pth。\u pthTo completely override sys.path, create a ._pth file with the same
name as the DLL (python36._pth) or the executable (python._pth) and
specify one line for each path to add to sys.path. The file based on
the DLL name overrides the one based on the executable, which allows
paths to be restricted for any program loading the runtime if desired.
When the file exists, all registry and environment variables are
ignored, isolated mode is enabled, and site is not imported unless one
line in the file specifies import site. Blank paths and lines starting
with # are ignored. Each path may be absolute or relative to the
location of the file. Import statements other than to site are not
permitted, and arbitrary code cannot be specified.
标准Python安装没有使示例按预期工作的
\pth。\u pth\uuuuu init\uuuuuuu.pyWorkingDirWorkingDir\uuuuu init\uuuuuuu.pyWorkingDirWorkingDir