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This article mainly explains "Python debugging tool PySnooper has what features", the explanation content in the article is simple and clear, easy to learn and understand, please follow the idea of Xiaobian slowly in-depth, together to study and learn "Python debugging tool PySnooper has what features"!

PySnooper is so simple to use that developers can use it in any large code base without any setup. You simply add decorators and specify the path to the log output address by specifying its path as the first argument.

PySnooper has 7047 Stars and 371 Forks on GitHub (https://github.com/cool-RR/PySnooper)

example

Here is a function that returns a binary list. We just need to add the @ pisnooper.snoop() decorator:

import pysnooper

@pysnooper.snoop()

def number_to_bits(number):

if number:

bits = []

while number:

number, remainder = divmod(number, 2)

bits.insert(0, remainder)

return bits

else:

return [0]

number_to_bits(6)

characteristics

stderr, you can output the selection to the specified file:

@pysnooper.snoop( /my/log/file.log )

View the variable values of some non-local variables:

@pysnooper.snoop(variables=( foo.bar , self.whatever ))

Snoop lines showing functions called by functions:

@pysnooper.snoop(depth=2)

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