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python command line arguments
import sys
def main():
if len(sys.argv) == 2:
print(f"the program name is {sys.argv[0]}")
print(f"hello, {sys.argv[1]}")
for eachArg in sys.argv:
for eachChar in eachArg:
print(eachChar)
print() # a line break between each vertical word
if __name__ == "__main__":
main()
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