最简单的解决方案!

a = 'The   fox jumped   over    the log.'
while '  ' in a: a = a.replace('  ', ' ')
print(a)

输出:

The fox jumped over the log.

另一个选择:

>>> import re
>>> str = 'this is a            string with    multiple spaces and    tabs'
>>> str = re.sub('[ \t]+' , ' ', str)
>>> print str
this is a string with multiple spaces and tabs

这样做，并将这样做::)

# python... 3.x
import operator
...
# line: line of text
return " ".join(filter(lambda a: operator.is_not(a, ""), line.strip().split(" ")))

Foo是你的字符串:

" ".join(foo.split())

需要注意的是，这将删除“所有空白字符(空格，制表符，换行符，返回，formfeed)”(感谢hhsaffar，见评论)。例如，“这不是一个测试”将有效地以“这是一个测试”结束。

要去除空白，考虑开头、结尾和单词之间的额外空白，可以使用:

(?<=\s) +|^ +(?=\s)| (?= +[\n\0])

第一个或处理前导空白，第二个或处理字符串开头的前导空白，最后一个处理尾随空白。

为了证明使用，这个链接将为您提供一个测试。

https://regex101.com/r/meBYli/4

这将与re.split函数一起使用。

import re

Text = " You can select below trims for removing white space!!   BR Aliakbar     "
  # trims all white spaces
print('Remove all space:',re.sub(r"\s+", "", Text), sep='') 
# trims left space
print('Remove leading space:', re.sub(r"^\s+", "", Text), sep='') 
# trims right space
print('Remove trailing spaces:', re.sub(r"\s+$", "", Text), sep='')  
# trims both
print('Remove leading and trailing spaces:', re.sub(r"^\s+|\s+$", "", Text), sep='')
# replace more than one white space in the string with one white space
print('Remove more than one space:',re.sub(' +', ' ',Text), sep='') 

结果:作为代码

"Remove all space:Youcanselectbelowtrimsforremovingwhitespace!!BRAliakbar"
"Remove leading space:You can select below trims for removing white space!!   BR Aliakbar"     
"Remove trailing spaces: You can select below trims for removing white space!!   BR Aliakbar"
"Remove leading and trailing spaces:You can select below trims for removing white space!!   BR Aliakbar"
"Remove more than one space: You can select below trims for removing white space!! BR Aliakbar"