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Using subprocess in python results in file not found


Using subprocess in python results in file not found

By : dangerdes
Date : November 17 2020, 11:58 AM
this one helps. In my case, if the file isn't being found when using python - check for special non-printing characters in the filename.
Remove all Carriage returns and Newlines and Linefeeds from the filename and you can check for other characters on linux with ls -b to see what needs to be escaped.
code :


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Python subprocess File not found

Python subprocess File not found


By : TJP
Date : March 29 2020, 07:55 AM
this will help I am trying to find the file type using file with subprocess , Add space between 'file' and fileinput
code :
Fileformat = subprocess.Popen('file ' + Fileinput)
#                                  ^
Fileformat = subprocess.Popen(['file', Fileinput])
>>> subprocess.check_output(['file', '/etc/passwd'])
'/etc/passwd: ASCII text\n'
Python on Android subprocess: /bin/sh: ls: not found

Python on Android subprocess: /bin/sh: ls: not found


By : user2249909
Date : March 29 2020, 07:55 AM
this will help PATH variable didn't include the correct directories when run from NZBGet. Fixed by setting os.environ['PATH'] manually. to abernert for the tip.
subprocess.check_output(): OSError file not found in Python

subprocess.check_output(): OSError file not found in Python


By : user3549077
Date : March 29 2020, 07:55 AM
hope this fix your issue Your command is a list with one element. Imagine if you tried to run this at the shell:
code :
/bin/'dd if='/dev/'sda8 count=100 skip=$(expr 19868431049 '/' 512)'
command = ['/bin/dd', 'if=/dev/sda8', 'count=100', 'skip=$(expr 19868431049 / 512)']
print subprocess.check_output(command) # notice no []
command = ['/bin/dd', 'if=/dev/sda8', 'count=100', 
           'skip={}'.format(19868431049 // 512)]
print subprocess.check_output(command)
command = "/bin/dd if=/dev/sda8 count=100 skip=$(expr 19868431049 / 512)"
print subprocess.check_output(command, shell=True) # still no []
command = "/bin/dd if=/dev/sda8 count=100 skip=$(expr 19868431049 / 512)"
print subprocess.check_output(command, shell=True, executable='/bin/bash')
subprocess.popen and subprocess.run when calling another file.py gives import error on linux. Python 3.6.4

subprocess.popen and subprocess.run when calling another file.py gives import error on linux. Python 3.6.4


By : rykitz
Date : March 29 2020, 07:55 AM
Hope that helps The only solution I found was to create a shell script and call it with subprocess.Popen or subprocess.run.
example: subprocess.Popen('Foo.sh')
code :
#!/usr/bin/env bash

python3 Foo.py > log.log &
how to read a json file in subprocess and use it in subprocess.call in a python code?

how to read a json file in subprocess and use it in subprocess.call in a python code?


By : PJ Eckerd
Date : March 29 2020, 07:55 AM
To fix the issue you can do , Read file as follows, btw this is not the only way to read file.
code :
>>> filename = "inputs.json"
>>> 
>>> fd = open("inputs.json")
>>> json_content = fd.read()
>>> 
>>> fd.close()
>>> 
>>> print(json_content)
{"sender": "AB", "body": "Trade order wall movement quite with want large. Store whose magazine ability so interest artist. Owner federal west.\nIt situation take kid money structure. Throughout may whose much or training", "id2": "2119739392053", "id": "111", "device_id": "9878"}

>>> 
>>> 
>>> import subprocess
>>> 
>>> subprocess.call(["ls", "-l"])
total 4
drwxrwxr-x 3 admin-pc admin-pc 4096 May  7 16:14 cJSON_Test
-rw-rw-r-- 1 admin-pc admin-pc    0 May 10 10:51 inputs.json
0
>>> 
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