I'm a beginner to Python and I decided to make a permutation finder program.
Have fun and don't question the name. :)
Generate Every Possibility
__author__ = 'matrixdevuk'
import itertools, sys, signal
if sys.version_info < (3,4,0):
print("This program requires a minimum Python version of 3.4. Please consider upgrading.")
sys.exit()
def signal_handler(signal, frame):
print("")
print("")
print("Goodbye. :)")
sys.exit()
signal.signal(signal.SIGINT, signal_handler)
def run(letters):
i = 0
for word in itertools.permutations(letters):
i += 1
word = "".join(word)
print("[" + str(i) + "] Found: " + word)
print()
print("-----------------")
print("Complete.")
print(" _ _")
print(" /_\ _ __ _ __ | | ___")
print(" //_\\\| '_ \| '_ \| |/ _ \\")
print("/ _ \ |_) | |_) | | __/")
print("\_/ \_/ .__/| .__/|_|\___|")
print(" |_| |_|")
print("a permutation finder by matrixdevuk")
print("do not question the name")
print()
uinput = input("Letters: ")
if uinput != "":
run(uinput)
else:
print("Error in validation; please restart.")
sys.exit()
Gribouillis 1,391 Programming Explorer Team Colleague
You can avoid many calls to print() by printing multiline strings such as
banner = '''
_____ ____
| ___|__ ___ | __ ) __ _ _ __
| |_ / _ \ / _ \| _ \ / _` | '__|
| _| (_) | (_) | |_) | (_| | |
|_| \___/ \___/|____/ \__,_|_|
a program by John Doe
---------------------
'''.strip('\n')
print(banner)
Also I think it is better to catch KeyboardInterrupt than to define a signal handler for SIGINT. Python already catches the signal. You can do
def main():
print(banner)
uinput = input("Letters: ")
if uinput != "":
run(uinput)
else:
print("Error in validation; please restart.")
if __name__ == '__main__':
try:
main()
except KeyboardInterrupt:
print('\n\nGoodbye. :)')
You could avoid the version check at the top of the program if it is not strictly necessary: people may have older versions of python, don't sys.exit() them immediately.
matrixdevuk 71 6t9.me Founder
@Gribouillis Thank you for the suggestions. Never knew about these. :)
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