Difference between import matplotlib and import matplotlib.pyplot [duplicate]

Question

When I imported matplotlib by using only import matplotlib, whether the pyplot was imported or not.

Following is a code to show my problem :

import numpy as np
import matplotlib as plt
print(np.sin(180))
x_sin=np.arange(0, 3*3.14 ,0.1)
print(x_sin)
y_sin=np.sin(x_sin)
print(y_sin)
plt.pyplot.plot(x_sin,y_sin)

When I tried to run this code it gave me the error:

AttributeError: module 'matplotlib' has no attribute 'pyplot'

matplotlib and matplotlib.pyplot are different modules, simple as that. Note that matplotlib.pyplot is a single dotted name, and not an attribute lookup on the matplotlib module. — Brian61354270
– Brian61354270, Commented Apr 18, 2023 at 1:14
@Brian61354270: Well, in the context of an import statement, matplotlib.pyplot isn't an attribute lookup. If you try to use matplotlib.pyplot later in an expression, that'll be an attribute lookup. — user2357112
– user2357112, Commented Apr 18, 2023 at 1:26

Bryce Chan · Accepted Answer · 2023-04-18 01:22:15Z

2

You need to be explicit of the module you want to import, in your case is the pyplot.

The usual way using of importing pyplot:

import matplotlib.pyplot as plt

or

from matplotlib import pyplot as plt

answered Apr 18, 2023 at 1:22

Bryce Chan

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Comments

Ajeet Verma · Accepted Answer · 2023-04-18 01:22:23Z

0

Try this way

import numpy as np
import matplotlib.pyplot as plt
print(np.sin(180))
x_sin = np.arange(0, 3*3.14, 0.1)
print(x_sin)
y_sin = np.sin(x_sin)
print(y_sin)
plt.plot(x_sin, y_sin)

answered Apr 18, 2023 at 1:22

Ajeet Verma

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