input variable into python call subprocess -


i have small python snippet calls larger program (i did not write larger one).

call(['function1', file1,  file2,  'data.labels=abc, xyz'])

the above works.

input ='abc, xyz'

now want input "abc, xyz" variable holding value

call(['function1', file1,  file2,  'data.labels=input'])

but not work.

how can pass variable value variable data.labels within call subprocess.

call(['function1', file1,  file2,  'data.labels=%s' % input])

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