mapjoin 0.2.0

mapjoin()

frommapjoinimportmapjoin,strjoinmapjoin('foo',2)# raise TypeErrormapjoin('foo',2,sep='_',key=str)# return 'foo_2'# you can also make mapjoin use your own callback with the key kwarg:your_formatter=lambdakey:str(key)ifkeyelse'Nothin!'mapjoin('foo',obj,2,None,sep='\n',key=your_formatter)

strjoin()

strjoin('foo',2)# 'foo-2'strjoin('foo',2,sep='_')# 'foo_2'

但是…为什么？

最初，因为我在编写os.path.join调用时会犯很多错误，然后 连续调用str.join:

>>>os.path.join('a','b')'a/b'# and 2 seconds later i'm doing this:>>>' '.join('a','b')TypeError:join()takesexactlyoneargument(2given)# and instead of "just fixit and move on", i decided try to make a joint

但也因为当代码看起来像：

readable=' '.join(map(str,['hello',f'__{name}__',something,]))# or:deffoo():readable=textwrap.dedent(f'''
    hello
    __{name}__
    ''').strip()

Participate to the story