Pycharm import string 问题求解 - V2EX
Vkin

Pycharm import string 问题求解

  •  
  •   Vkin May 14, 2017 2318 views
    This topic created in 3311 days ago, the information mentioned may be changed or developed.

    Pycharm 版本 2017.1

    Python 版本 3.6

    导入包 import time , import os ,import re 等等均正常。

    唯独导入 import string 时 Pycharm 却提示:

    Unused import statement less... (F1) This inspection detects names that should resolve but don't. Due to dynamic dispatch and duck typing, this is possible in a limited but useful number of cases. Top-level and class-level items are supported better than instance items.

    忽略这个提示: 使用 str.strip() 对字符串进行处理,程序正常运行,但是返回的结果并没有去除换行符。

    在终端 运行 import string str.strip(),可以正常去除换行符。

    求解

    4 replies    2017-05-15 12:48:18 +08:00
    Kilerd
        1
    Kilerd  
       May 14, 2017
    import xxx

    你必须要在程序中用要 xxx.func 才可以。

    str 是内置的,str.strip("123") == "123".strip() ,不需要 import 任何包
    Kilerd
        2
    Kilerd  
       May 14, 2017
    string.__all__

    __all__ = ["ascii_letters", "ascii_lowercase", "ascii_uppercase", "capwords",
    "digits", "hexdigits", "octdigits", "printable", "punctuation",
    "whitespace", "Formatter", "Template"]

    你看看自己有没有用到这些函数或者类把
    Vkin
        3
    Vkin  
    OP
       May 15, 2017
    @Kilerd 难怪导入 string 会这样提示,但不知为啥 在 Pycharm 里面,strip()好像不起任何作用。
    a = '123'
    print(a)
    a.strip()
    print(a)
    这两个打印结果,均打印了 2 个换行符。
    Vkin
        4
    Vkin  
    OP
       May 15, 2017
    @Kilerd 未用到。
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