已经成功安装pygal了，但是import pygal 的时候显示‘No module named pygal'，Geany编译器，linux系统

已经成功安装pygal了，但是import pygal 的时候显示‘No module named pygal'，Geany编译器，linux系统

代码如下：

import pygal
from random import randint
class Die():
    def __init__(self,sides=6):
        self.sides=sides
    def roll(self):
        number=randint(1,self.sides)
        return number

die=Die()
results=[]
for i in range(5000):
    result=die.roll()
    results.append(result)
frequencies=[]
for i in range(die.sides):
    frequency=results.count(i)
    frequencies.append(frequency)

hist=pygal.Bar()
hist.add('D6',frequencies)
hist.render_to_file('D6.svg')

然后：

Traceback (most recent call last):
  File "matplotlib_practice.py", line 59, in <module>
    import pygal
ModuleNotFoundError: No module named 'pygal'

https://www.cnblogs.com/anliux/p/10750635.html