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I am running python3.5 on a RPi3 and have installed matplotlib and numpy. I can import when in the shell, but not from within the terminal, per below:

Python 3.5.3 (default, Sep 27 2018, 17:25:39) 
[GCC 6.3.0 20170516] on linux
Type "copyright", "credits" or "license()" for more information.
>>> import numpy as np
>>> import matplotlib.pyplot as plt
>>>

.

pi@raspberrypi:~ $ python3 -V
Python 3.5.3
pi@raspberrypi:~ $ import numpy as np
bash: import: command not found
pi@raspberrypi:~ $ import numpy
bash: import: command not found
pi@raspberrypi:~ $ import matplotlib.pyplot as plt
bash: import: command not found
pi@raspberrypi:~ $

Any ideas on why this would be the case?

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  • 1
    python3 -V runs once to print the version then exits. Use python3 with no special flags to get an interpreter shell. Or code your python stuff in a file with nano myprog.py then run it with python3 myprog.py. Commented Mar 4, 2019 at 6:20

1 Answer 1

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To run python inside a Linux terminal, you first have to execute python using the command python3.

Example on my Raspberry Pi:

pi@raspberrypi ~ $ python3
Python 3.2.3 (default, Mar 25 2017, 13:24:50)
[GCC 4.6.3] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> print("Test")
Test
>>> exit()
pi@raspberrypi ~ $

Changed to python 3 example after @Dougie 's comment.

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  • 4
    We should all be encouraging new programmers to forget about python2 and always use python3 for their new code. Commented Mar 4, 2019 at 6:22

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