aStr = 'hello  wel\rcome \t   to   \t  zy \n  oYeah'
print(''.join(aStr.split()))

首先奖原字符串进行分割,然后组合

split() -->  ['hello', 'wel', 'come', 'to', 'zy', 'oYeah']

join() --> hellowelcometozyoYeah

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