65 lines
1.5 KiB
Python
65 lines
1.5 KiB
Python
import sys
|
|
|
|
if __name__ == "__main__":
|
|
result = 0
|
|
|
|
def help(): {
|
|
print("input: [value] [operation] [value]\noperations: [ + - . / ]\n")
|
|
}
|
|
|
|
if(len(sys.argv) > 1):
|
|
if(sys.argv[1] == "-h" or sys.argv[1] == "--help"):
|
|
help()
|
|
sys.exit()
|
|
if(len(sys.argv) == 0):
|
|
help()
|
|
sys.exit()
|
|
|
|
if(len(sys.argv) < 4):
|
|
print("not enough arguments\n")
|
|
help()
|
|
sys.exit()
|
|
if(len(sys.argv) > 4):
|
|
print("too many arguments\n")
|
|
help()
|
|
sys.exit()
|
|
|
|
if(sys.argv[1].isdecimal):
|
|
val1=int(sys.argv[1])
|
|
|
|
else:
|
|
print("1st arg should be an integer!")
|
|
help()
|
|
sys.exit()
|
|
if(sys.argv[2].isascii and len(sys.argv[2]) == 1):
|
|
if (not ((sys.argv[2]=="+") or (sys.argv[2]=="-") or (sys.argv[2]==".") or (sys.argv[2]=="/"))):
|
|
print("2nd arg should be an operator [ + - . / ]!\n")
|
|
help()
|
|
sys.exit()
|
|
op=sys.argv[2]
|
|
|
|
if(sys.argv[3].isdecimal):
|
|
val2=int(sys.argv[3])
|
|
else:
|
|
print("3rd arg should be an integer!")
|
|
help()
|
|
|
|
|
|
#todo switch case and then operations
|
|
|
|
if(op=="+"):
|
|
print(f"{val1} + {val2} = {val1+val2}")
|
|
|
|
elif(op=="-"):
|
|
print(f"{val1} - {val2} = {val1-val2}")
|
|
|
|
elif(op=="."):
|
|
print(f"{val1} . {val2} = {val1*val2}")
|
|
|
|
elif(op=="/"):
|
|
print(f"{val1} / {val2} = {val1/val2}")
|
|
|
|
else:
|
|
print(f"'{op}' is not a valid operator")
|
|
sys.exit()
|
|
|