Python 不接受导入模块名称为 '-'

Question

我有一个名为“downloadflat-modular.py”的模块，python 无法导入该模块

Python 3.4.0 (default, Apr 11 2014, 13:05:11) 
[GCC 4.8.2] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import downloadflat-modular
  File "<stdin>", line 1
    import downloadflat-modular
                       ^
SyntaxError: invalid syntax
>>> from downloadflat-modular import *
  File "<stdin>", line 1
    from downloadflat-modular import *
                     ^
SyntaxError: invalid syntax
>>> 

这是限制吗？

uname -a
Linux ubuntu 3.16.0-30-generic #40~14.04.1-Ubuntu SMP Thu Jan 15 17:43:14 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

Answer 1

包名称是标识符，因此它们不能包含连字符。

python 中的标识符必须以小写/大写字母或下划线开头，名称的其余部分可以包含数字。

---

根据 PEP8，建议的样式如下:

https://www.python.org/dev/peps/pep-0008/#package-and-module-names

Modules should have short, all-lowercase names. Underscores can be used in the module name if it improves readability. Python packages should also have short, all-lowercase names, although the use of underscores is discouraged.