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NameError: name 'np' is not defined

时间: 2023-09-25 13:09:42 浏览: 102

Python中对错误NameError: name ‘xxx’ is not defined进行总结

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最近在使用python过重遇到这个问题，NameError: name 'xxx' is not defined，在学习python或者在使用python的过程中这个问题大家肯定都遇到过，在这里我就这个问题总结以下几种情况：错误NameError: name ‘xxx’ is not defined总结情况一：要加双引号（” “）或者（’ ‘）而没加情况二：字符缩进格式的问题情况三：`if __name__==’__main__’ :` 没有和`class类`进行对齐情况四：NameError: name ‘file’ is not defined情况五：NameError: name ‘模

This error occurs when the numpy library has not been imported properly or the alias 'np' has not been assigned to it. To resolve this error, you can import numpy using the following command: import numpy as np This will import the numpy library and assign the alias 'np' to it, allowing you to use numpy functions and objects in your code.

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