Python 3.7.1 try except block happening in wrong order in command line












1















I'm a beginner and working on a very basic skill set.



I'm making a simple text game in command line for windows, and have a function that lets users read the most recent statement, and skip it by causing a KeyboardInterrupt like with Ctrl-C.



from time import sleep
def wait(seconds):
try:
sleep(seconds)
except KeyboardInterrupt:
pass
return


the issue arises when I want to print something and not have a newline afterwards. In that case, the wait() function will execute before the print() function



# functions properly, but has unwanted newline
print("test", end='testn')
wait(3)
# in windows CMD, wait() executes before print()
print("test", end='test')
wait(3)


I know there are ways around this like using TKinter, but I want to know why this happens, not how to avoid it entirely.



EDIT: I kept searching and found the issue wasn't the try except block, but sleep():
Error with Print and Sleep in Python
copy of the answer:



You should use:



print (a, end="", flush=True)


Because console output is line-buffered.










share|improve this question

























  • I can't replicate this with your example. With both ways, n and no n it executes in the expected order, print then wait, for me.

    – lieblos
    Nov 19 '18 at 3:21













  • I was reading and was about to answer, then saw that you'd already found the answer :). Since you figured it out, you should post an answer to your question; it's very much allowed! Welcome to Stack Overflow!

    – Cyphase
    Nov 19 '18 at 6:25
















1















I'm a beginner and working on a very basic skill set.



I'm making a simple text game in command line for windows, and have a function that lets users read the most recent statement, and skip it by causing a KeyboardInterrupt like with Ctrl-C.



from time import sleep
def wait(seconds):
try:
sleep(seconds)
except KeyboardInterrupt:
pass
return


the issue arises when I want to print something and not have a newline afterwards. In that case, the wait() function will execute before the print() function



# functions properly, but has unwanted newline
print("test", end='testn')
wait(3)
# in windows CMD, wait() executes before print()
print("test", end='test')
wait(3)


I know there are ways around this like using TKinter, but I want to know why this happens, not how to avoid it entirely.



EDIT: I kept searching and found the issue wasn't the try except block, but sleep():
Error with Print and Sleep in Python
copy of the answer:



You should use:



print (a, end="", flush=True)


Because console output is line-buffered.










share|improve this question

























  • I can't replicate this with your example. With both ways, n and no n it executes in the expected order, print then wait, for me.

    – lieblos
    Nov 19 '18 at 3:21













  • I was reading and was about to answer, then saw that you'd already found the answer :). Since you figured it out, you should post an answer to your question; it's very much allowed! Welcome to Stack Overflow!

    – Cyphase
    Nov 19 '18 at 6:25














1












1








1








I'm a beginner and working on a very basic skill set.



I'm making a simple text game in command line for windows, and have a function that lets users read the most recent statement, and skip it by causing a KeyboardInterrupt like with Ctrl-C.



from time import sleep
def wait(seconds):
try:
sleep(seconds)
except KeyboardInterrupt:
pass
return


the issue arises when I want to print something and not have a newline afterwards. In that case, the wait() function will execute before the print() function



# functions properly, but has unwanted newline
print("test", end='testn')
wait(3)
# in windows CMD, wait() executes before print()
print("test", end='test')
wait(3)


I know there are ways around this like using TKinter, but I want to know why this happens, not how to avoid it entirely.



EDIT: I kept searching and found the issue wasn't the try except block, but sleep():
Error with Print and Sleep in Python
copy of the answer:



You should use:



print (a, end="", flush=True)


Because console output is line-buffered.










share|improve this question
















I'm a beginner and working on a very basic skill set.



I'm making a simple text game in command line for windows, and have a function that lets users read the most recent statement, and skip it by causing a KeyboardInterrupt like with Ctrl-C.



from time import sleep
def wait(seconds):
try:
sleep(seconds)
except KeyboardInterrupt:
pass
return


the issue arises when I want to print something and not have a newline afterwards. In that case, the wait() function will execute before the print() function



# functions properly, but has unwanted newline
print("test", end='testn')
wait(3)
# in windows CMD, wait() executes before print()
print("test", end='test')
wait(3)


I know there are ways around this like using TKinter, but I want to know why this happens, not how to avoid it entirely.



EDIT: I kept searching and found the issue wasn't the try except block, but sleep():
Error with Print and Sleep in Python
copy of the answer:



You should use:



print (a, end="", flush=True)


Because console output is line-buffered.







python python-3.x printing try-except






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Nov 19 '18 at 3:29







Defending Towers

















asked Nov 19 '18 at 3:11









Defending TowersDefending Towers

63




63













  • I can't replicate this with your example. With both ways, n and no n it executes in the expected order, print then wait, for me.

    – lieblos
    Nov 19 '18 at 3:21













  • I was reading and was about to answer, then saw that you'd already found the answer :). Since you figured it out, you should post an answer to your question; it's very much allowed! Welcome to Stack Overflow!

    – Cyphase
    Nov 19 '18 at 6:25



















  • I can't replicate this with your example. With both ways, n and no n it executes in the expected order, print then wait, for me.

    – lieblos
    Nov 19 '18 at 3:21













  • I was reading and was about to answer, then saw that you'd already found the answer :). Since you figured it out, you should post an answer to your question; it's very much allowed! Welcome to Stack Overflow!

    – Cyphase
    Nov 19 '18 at 6:25

















I can't replicate this with your example. With both ways, n and no n it executes in the expected order, print then wait, for me.

– lieblos
Nov 19 '18 at 3:21







I can't replicate this with your example. With both ways, n and no n it executes in the expected order, print then wait, for me.

– lieblos
Nov 19 '18 at 3:21















I was reading and was about to answer, then saw that you'd already found the answer :). Since you figured it out, you should post an answer to your question; it's very much allowed! Welcome to Stack Overflow!

– Cyphase
Nov 19 '18 at 6:25





I was reading and was about to answer, then saw that you'd already found the answer :). Since you figured it out, you should post an answer to your question; it's very much allowed! Welcome to Stack Overflow!

– Cyphase
Nov 19 '18 at 6:25












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I agree with your answer. You should use:



print(a, end="", flush=True)


because console output is line-buffered.






share|improve this answer























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    0














    I agree with your answer. You should use:



    print(a, end="", flush=True)


    because console output is line-buffered.






    share|improve this answer




























      0














      I agree with your answer. You should use:



      print(a, end="", flush=True)


      because console output is line-buffered.






      share|improve this answer


























        0












        0








        0







        I agree with your answer. You should use:



        print(a, end="", flush=True)


        because console output is line-buffered.






        share|improve this answer













        I agree with your answer. You should use:



        print(a, end="", flush=True)


        because console output is line-buffered.







        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered Nov 19 '18 at 6:57









        J_HJ_H

        3,3501617




        3,3501617






























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