Error while running fenics using docker

I/O
1

dear friends ,
i am getting error like this when i am trying to run python script file from other drive
''fenics@be5182b04259:~$ cd f\

cd f\phasefield\ python3 PhaseField.py
bash: cd: too many arguments’’
please suggest how to fix this

2

Try using a forward slash / instead of the backslash \ in the file path. In Bash, the backslash is a line continuation, so the shell thinks you are trying to pass python3 and PhasField.py as arguments to cd, instead of interpreting it as the next command.

3

same error is comming

fenics@be5182b04259:~$ cd f/phasefield/python3 Phasefield.py
bash: cd: too many arguments

4

Did you press enter after typing cd f/phasefield/?

5

in f drive folder name phase field

6

can you tell me how to import a python script file that is in my system and use it in docker

7

when i am trying to create the container with the command they have given i am getting this error
C:\Users\venkat>docker run -ti -p 127.0.0.1:8000:8000 -v (pwd):/home/fenics/shared -w /home/fenics/shared quay.io/fenicsproject/stable:current docker: Error response from daemon: create (pwd): “$(pwd)” includes invalid characters for a local volume name, only “[a-zA-Z0-9][a-zA-Z0-9_.-]” are allowed. If you intended to pass a host directory, use absolute path.
See ‘docker run --help’

8

It’s been a long time since I’ve tried using Docker on Windows. Maybe try taking a look at the instructions here:

9

while i am trying to run demo program in fenics i am getiing the error like this demo_poisson .py
Traceback (most recent call last):
File “demo_poisson.py”, line 54, in
f = Expression(“10*exp(-(pow(x[0] - 0.5, 2) + pow(x[1] - 0.5, 2)) / 0.02)”)
File “/usr/lib/python3/dist-packages/dolfin/function/expression.py”, line 409, in init
raise KeyError(“Must supply element or degree”)
KeyError: ‘Must supply element or degree’

10

I guess your demo is from an older version of FEniCS, as the keyword argument degree/element has been required since v 2016.1.0.
See: the bitbucket demo for the latest version of the demo.

11

thanks a lot code is running
can you tell me how to convert and see the pvd files into image and video

12

in other code i am getting the error like this can you please tell that i think is is same older version code thats the problem could you fix it
File “Tension.py”, line 48
print “number of unknown”,mesh.num_vertices()
^
SyntaxError: invalid syntax

13

This looks like it’s related to the version of Python you are using (python 2 / python 3) (see for example : https://sebastianraschka.com/Articles/2014_python_2_3_key_diff.html#the-print-function)

1 Like
14

import matplotlib.pyplot as plt

from fenics import *
from tools.elasticity import *