Python methods for removing whitespace at both ends of a string

Purpose

Get a string that contains no extra spaces

Method

You can use the following methods of string processing:

String.lstrip (s[, chars])
Return a copy of the string with leading characters removed. If chars is omitted or None, the whitespace characters is removed. If given and not None, chars must is a string; The characters in the string would be stripped from the beginning of the string this method is called on.

String.rstrip (s[, chars])
Return a copy of the string with trailing characters removed. If chars is omitted or None, the whitespace characters is removed. If given and not None, chars must is a string; The characters in the string would be stripped from the end of the "This" method is called on.

String.strip (s[, chars])
Return a copy of the string with leading and trailing characters removed. If chars is omitted or None, the whitespace characters is removed. If given and not None, chars must is a string; The characters in the string would be stripped from the both ends of the string this method is called on.

The specific results are as follows:

The code is as follows:

In [ten]: x= ' hi,jack! '

In [all]: print ' | ', X.lstrip (), ' | ', X.rstrip (), ' | ', X.strip (), ' | '
| hi,jack! | hi,jack! | hi,jack! |

The parameters provided by chars are used to remove specific symbols, noting that the spaces are not removed, for example:

The code is as follows:

In []: x= ' yxyxyxxxyy Hello xyxyxyy '

In []: Print X.strip (' xy ')
Hello

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