错误名称错误:未定义名称"np" [英] Error NameError: name 'np' is not defined

问题描述

from numpy import *
x = np.random.randint(low=10, high=30, size=6)
print(x)


"C:\Users\Piistasyo\PycharmProjects\test project\venv\Scripts\python.exe" "C:/Users/Piistasyo/PycharmProjects/test project/loop.py"
Traceback (most recent call last):
  File "C:/Users/Piistasyo/PycharmProjects/test project/loop.py", line 44, in <module>
    x = np.random.randint(low=10, high=30, size=6)
NameError: name 'np' is not defined

为什么会出现此错误?请帮助我已经安装了numpy软件包

why am i getting this error? pls help i already installed the numpy package

推荐答案

正如@aydow所说，将from numpy import *更改为import numpy as np":

As @aydow says, "change from numpy import * to import numpy as np":

import numpy as np
...

还是不要写np:

from numpy import *
x = random.randint(low=10, high=30, size=6)
...

因为，from numpy import *，在numpy中导入每个函数，所以np不是numpy的函数，因此必须像import numpy as np一样导入numpy，或者删除np.random.randint(low=10, high=30, size=6)的np部分，并进行像这样:random.randint(low=10, high=30, size=6)，这都是因为random是numpy的函数，基本上就是这些了

Because, from numpy import *, Import every function in numpy, so np is not a function of numpy, so have to Import numpy like import numpy as np, Or, Remove np part of np.random.randint(low=10, high=30, size=6), and make it like this: random.randint(low=10, high=30, size=6), it's all since random is a function of numpy, basically that's all, to explain

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