代替print输出的PY调试库：PySnooper

矫情吗；* 2023-08-17 15:20 97阅读 0赞

## PySnooper¶ ##

Github：[https://github.com/lotapp/PySnooper][https_github.com_lotapp_PySnooper]

`pip install pysnooper`

使用：**分析整个代码**

@pysnooper.snoop()
    def avg(args):
        return sum(args) / len(args)

PS：调试代码片段

with pysnooper.snoop():
        code

In \[1\]:

import functools
    import pysnooper
    
    # 分析整个代码
    @pysnooper.snoop()
    def sum(args):
        return functools.reduce(lambda x, y: x + y, args)
    
    def avg(args):
        # return sum(args) / len(args)
        sum_num = sum(args)
        # 分析片段代码
        with pysnooper.snoop():
            avg_num = sum_num / len(args)
        return avg_num

In \[2\]:

# 求和
    sum(list(range(1, 101)))

Starting var:.. args = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, ... 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100]
    12:21:19.846556 call         6 def sum(args):
    12:21:19.847553 line         7     return functools.reduce(lambda x, y: x + y, args)
    12:21:19.847553 return       7     return functools.reduce(lambda x, y: x + y, args)
    Return value:.. 5050

Out\[2\]:

5050

In \[3\]:

# 平均值
    avg(list(range(1, 101)))

Starting var:.. args = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, ... 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100]
    12:21:19.940523 call         6 def sum(args):
    12:21:19.941526 line         7     return functools.reduce(lambda x, y: x + y, args)
    12:21:19.941526 return       7     return functools.reduce(lambda x, y: x + y, args)
    Return value:.. 5050
    New var:....... args = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, ... 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100]
    New var:....... sum_num = 5050
    12:21:19.942524 line        14         avg_num = sum_num / len(args)

Out\[3\]:

50.5

转载于:https://www.cnblogs.com/dotnetcrazy/p/10848257.html

[https_github.com_lotapp_PySnooper]: https://github.com/lotapp/PySnooper