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shubhangi_1 0 Newbie Poster

I want to print the count N letters of string but it result in error can anybody help me?

import subprocess
variable = "making"
s = subprocess.Popen(("grep","-o -w","%s"%variable, "output.txt|wc -w"), stdout = subprocess.PIPE)
output = s.communicate()[0]
print(output)
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