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Passing Command Line Argument to Python Script causes program failure, but creating a local variable in its place, program runs properly


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Basically, I am writing a python script called detect.py. It will take in one argument from the command line (the argument is an integer, either 1 or 2). The detect.py script passes that argument into a batch file, which specifies a .dcs which is then run in an external tool. However, when I run the program like this, I get an error in the tool saying that the .dcs file is not found.



If I run the program without using the command line, on my own IDE (PyCharm), and just create a local variable (i.e. select = r'1' or r'2') and pass that into the batch file, I don't encounter any issues.



I am not sure what the issue is. I have tried casting the command line argument and making sure it is the proper type, I have verified the contents of the variable passed to the batch file is correct, but it still fails in every situation. Does python interpret the Command Line in such a way that causes this issue? I am at a loss here...



CODE SNIPPET:



def main(select):
"""
Main function
:param select: number of the quick connect channel in DET
can only be 1 or 2
"""
import subprocess

#List that holds the specific values for the channel select
chan_select = [r'1' , r'2']

chan = chan_select[int(select) - 1]

#UPDATE PATH VARIABLE AS NEEDED
PATH_FOR_DET_EXE = r'C:usersXXXXXDocumentsFord NetComDiagnostic Engineering Tool'

#variables to store log files
logReadName = '..\RESULT_LOGS\FDB1_Result.txt'
LUTname = '..\RESULT_LOGS\variantLUT.txt'

#PASS VARIABLES INTO BATCH FILE AND EXECUTE THE READ FDB1 BATCH FILE
subprocess.call([r'C:_FG41_AUTO_CI_STRATEGYFDB1_CheckBATCH_CMDRead_FDB1.bat', PATH_FOR_DET_EXE, chan], shell=True)


if __name__ == "__main__":
import sys
"""
**if I hard code the param passed to main
ex) select = r'1'
I have no issues**
"""
channel = sys.argv[1]
main(channel)









share|improve this question







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    0















    Basically, I am writing a python script called detect.py. It will take in one argument from the command line (the argument is an integer, either 1 or 2). The detect.py script passes that argument into a batch file, which specifies a .dcs which is then run in an external tool. However, when I run the program like this, I get an error in the tool saying that the .dcs file is not found.



    If I run the program without using the command line, on my own IDE (PyCharm), and just create a local variable (i.e. select = r'1' or r'2') and pass that into the batch file, I don't encounter any issues.



    I am not sure what the issue is. I have tried casting the command line argument and making sure it is the proper type, I have verified the contents of the variable passed to the batch file is correct, but it still fails in every situation. Does python interpret the Command Line in such a way that causes this issue? I am at a loss here...



    CODE SNIPPET:



    def main(select):
    """
    Main function
    :param select: number of the quick connect channel in DET
    can only be 1 or 2
    """
    import subprocess

    #List that holds the specific values for the channel select
    chan_select = [r'1' , r'2']

    chan = chan_select[int(select) - 1]

    #UPDATE PATH VARIABLE AS NEEDED
    PATH_FOR_DET_EXE = r'C:usersXXXXXDocumentsFord NetComDiagnostic Engineering Tool'

    #variables to store log files
    logReadName = '..\RESULT_LOGS\FDB1_Result.txt'
    LUTname = '..\RESULT_LOGS\variantLUT.txt'

    #PASS VARIABLES INTO BATCH FILE AND EXECUTE THE READ FDB1 BATCH FILE
    subprocess.call([r'C:_FG41_AUTO_CI_STRATEGYFDB1_CheckBATCH_CMDRead_FDB1.bat', PATH_FOR_DET_EXE, chan], shell=True)


    if __name__ == "__main__":
    import sys
    """
    **if I hard code the param passed to main
    ex) select = r'1'
    I have no issues**
    """
    channel = sys.argv[1]
    main(channel)









    share|improve this question







    New contributor




    JMB94 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
    Check out our Code of Conduct.























      0












      0








      0








      Basically, I am writing a python script called detect.py. It will take in one argument from the command line (the argument is an integer, either 1 or 2). The detect.py script passes that argument into a batch file, which specifies a .dcs which is then run in an external tool. However, when I run the program like this, I get an error in the tool saying that the .dcs file is not found.



      If I run the program without using the command line, on my own IDE (PyCharm), and just create a local variable (i.e. select = r'1' or r'2') and pass that into the batch file, I don't encounter any issues.



      I am not sure what the issue is. I have tried casting the command line argument and making sure it is the proper type, I have verified the contents of the variable passed to the batch file is correct, but it still fails in every situation. Does python interpret the Command Line in such a way that causes this issue? I am at a loss here...



      CODE SNIPPET:



      def main(select):
      """
      Main function
      :param select: number of the quick connect channel in DET
      can only be 1 or 2
      """
      import subprocess

      #List that holds the specific values for the channel select
      chan_select = [r'1' , r'2']

      chan = chan_select[int(select) - 1]

      #UPDATE PATH VARIABLE AS NEEDED
      PATH_FOR_DET_EXE = r'C:usersXXXXXDocumentsFord NetComDiagnostic Engineering Tool'

      #variables to store log files
      logReadName = '..\RESULT_LOGS\FDB1_Result.txt'
      LUTname = '..\RESULT_LOGS\variantLUT.txt'

      #PASS VARIABLES INTO BATCH FILE AND EXECUTE THE READ FDB1 BATCH FILE
      subprocess.call([r'C:_FG41_AUTO_CI_STRATEGYFDB1_CheckBATCH_CMDRead_FDB1.bat', PATH_FOR_DET_EXE, chan], shell=True)


      if __name__ == "__main__":
      import sys
      """
      **if I hard code the param passed to main
      ex) select = r'1'
      I have no issues**
      """
      channel = sys.argv[1]
      main(channel)









      share|improve this question







      New contributor




      JMB94 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.












      Basically, I am writing a python script called detect.py. It will take in one argument from the command line (the argument is an integer, either 1 or 2). The detect.py script passes that argument into a batch file, which specifies a .dcs which is then run in an external tool. However, when I run the program like this, I get an error in the tool saying that the .dcs file is not found.



      If I run the program without using the command line, on my own IDE (PyCharm), and just create a local variable (i.e. select = r'1' or r'2') and pass that into the batch file, I don't encounter any issues.



      I am not sure what the issue is. I have tried casting the command line argument and making sure it is the proper type, I have verified the contents of the variable passed to the batch file is correct, but it still fails in every situation. Does python interpret the Command Line in such a way that causes this issue? I am at a loss here...



      CODE SNIPPET:



      def main(select):
      """
      Main function
      :param select: number of the quick connect channel in DET
      can only be 1 or 2
      """
      import subprocess

      #List that holds the specific values for the channel select
      chan_select = [r'1' , r'2']

      chan = chan_select[int(select) - 1]

      #UPDATE PATH VARIABLE AS NEEDED
      PATH_FOR_DET_EXE = r'C:usersXXXXXDocumentsFord NetComDiagnostic Engineering Tool'

      #variables to store log files
      logReadName = '..\RESULT_LOGS\FDB1_Result.txt'
      LUTname = '..\RESULT_LOGS\variantLUT.txt'

      #PASS VARIABLES INTO BATCH FILE AND EXECUTE THE READ FDB1 BATCH FILE
      subprocess.call([r'C:_FG41_AUTO_CI_STRATEGYFDB1_CheckBATCH_CMDRead_FDB1.bat', PATH_FOR_DET_EXE, chan], shell=True)


      if __name__ == "__main__":
      import sys
      """
      **if I hard code the param passed to main
      ex) select = r'1'
      I have no issues**
      """
      channel = sys.argv[1]
      main(channel)






      command-line batch python






      share|improve this question







      New contributor




      JMB94 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.











      share|improve this question







      New contributor




      JMB94 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.









      share|improve this question




      share|improve this question






      New contributor




      JMB94 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.









      asked 1 hour ago









      JMB94JMB94

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      New contributor




      JMB94 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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      New contributor





      JMB94 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.






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      Check out our Code of Conduct.






















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