Now Consider the following idea  I'm declaring a if/elif type to run the program Such as :  number=int(input("Enter a number :"))  If number ==0 Run program.py  Elif number ==1 Run Program2.py  Else number ==2 Run Program3.py   Now clearly the command run program.py doesn't work so what should I do to make it execute program.py incase it is selected and close the main program where we are choosing the number?
93899
I have a Python script that needs to execute an external program, but for some reason fails.  If I have the following script:  import os; os.system("C:\\Temp\\a b c\\Notepad.exe"); raw_input();   Then it fails with the following error:     'C:\Temp\a' is not recognized as an internal or external command, operable program or batch file.   If I escape the program with quotes:  import os; os.system('"C:\\Temp\\a b c\\Notepad.exe"'); raw_input();   Then it works. However, if I add a parameter, it stops working again:  import os; os.system('"C:\\Temp\\a b c\\Notepad.exe" "C:\\test.txt"'); raw_input();   What is the right way to execute a program and wait for it to complete? I do not need to read output from it, as it is a visual program that does a job and then just exits, but I need to wait for it to complete.  Also note, moving the program to a non-spaced path is not an option either.    This does not work either:  import os; os.system("'C:\\Temp\\a b c\\Notepad.exe'"); raw_input();   Note the swapped single/double quotes.  With or without a parameter to Notepad here, it fails with the error message     The filename, directory name, or volume label syntax is incorrect.
82783
How do you access the command line or run option to put the commands into the system?
12284
Trying to learn how to run my scripts through Ubuntu's terminal regularly.  That being said I am familiar with bash, wget, and awk being called but how do I call python files to run in the terminal?  I would like to learn this but I am unsure on where to research it.  I have a .pyw file that references several .py files in a folder.
119913
I understand commands but I am fairly new to the 1.13 changes.  I am trying to make an AFK system within vanilla Minecraft.  I want to use the /execute command to execute once. I want to detect when a scoreboard objective is a certain value and print  [Player] has gone AFK   in the chat only once. This is my command at the moment,  execute as @a[scores={afk=1..}] at @s run tellraw @a {"text":"","color":"red","extra":[{"selector":"@s"},{"text":" has gone AFK.","color":"yellow"}]}   It keeps printing until the scoreboard value is reset.
70290
I often lose track of the command flow due to the long text output of some commands, so I would like to have a main terminal window where user commands are executed and other terminal windows that „pop up“ displaying the commands' output and then are closed with the use of a short-cut.  Is it possible to code such a behavior? Any tips about the language I should use?  An even more user-friendly interaction would be for the terminal to ask whether it should display the output externally if it exceeds a user-set limit.
9685
I had originally coded the program wrongly. Instead of returning the Fibonacci numbers between a range (ie. startNumber 1, endNumber 20 should = only those numbers between 1 &amp; 20), I have written for the program to display all Fibonacci numbers between a range (ie. startNumber 1, endNumber 20 displays = First 20 Fibonacci numbers). I thought I had a sure-fire code. I also do not see why this is happening.  startNumber = int(raw_input("Enter the start number here ")) endNumber = int(raw_input("Enter the end number here "))  def fib(n):     if n &lt; 2:         return n     return fib(n-2) + fib(n-1)  print map(fib, range(startNumber, endNumber))   Someone pointed out in my Part II (which was closed for being a duplicate - ) that I need to pass the startNumber and endNumber through a generator using a while loop. Can someone please point me in the direction on how to do this? Any help is welcome.    I'm a learning programmer and I've run into a bit of a jumble. I am asked to write a program that will compute and display Fibonacci's Sequence by a user inputted start number and end number (ie. startNumber = 20 endNumber = 100 and it will display only the numbers between that range). The trick is to use it inclusively (which I do not know how to do in Python? - I'm assuming this means to use an inclusive range?).  What I have so far is no actual coding but rather:   Write Fib sequence formula to infinite Display startNumber to endNumber only from Fib sequence.   I have no idea where to start and I am asking for ideas or insight into how to write this. I also have tried to write the Fib sequence forumla but I get lost on that as well.
27458
I've got a utility that outputs a list of files required by a game.  How can I run that utility within a C program and grab its output so I can act on it within the same program? UPDATE: Good call on the lack of information.  The utility spits out a series of strings, and this is supposed to be portable across Mac/Windows/Linux.  Please note, I'm looking for a programmatic way to execute the utility and retain its output (which goes to stdout).
78012
How do I determine if a number is prime?  I'm writing a program where a user inputs any integer and from that the program determines whether the number is prime, but how do I go about that?
58481
I'm running Windows and the shell/OS automatically runs Python based on the registry settings when you run a program on the command line. Will this break if I install a 2.x and 3.x version of Python on the same machine?  I want to play with Python 3 while still being able to run 2.x scripts on the same machine.
65894
I got a message saying script xyz.py returned exit code 0. What does this mean?  What do the exit codes in Python mean? How many are there? Which ones are important?
43519
There are several ways to execute a script. The ones I know are: /path/to/script # using the path (absolute or relative) . script        # using the . (dot) source script   # using the `source` command  Are there any other way? What are the differences between them? Are there situations that I must use one and not another?
32263
Can you please tell me how much is (-2) % 5? According to my Python interpreter is 3, but do you have a wise explanation for this?  I've read that in some languages the result can be machine-dependent, but I'm not sure though.
8128
What is the best possible way to check if a string can be represented as a number in Python?   The function I currently have right now is:  def is_number(s):     try:         float(s)         return True     except ValueError:         return False   Which, not only is ugly and slow, seems clunky. However I haven't found a better method because calling float in the main function is even worse.
10701
I am looking for a way to execute some console commands automatically when a command-prompt is opened in Windows, specifically to set some command aliases.  For example, when a command-prompt is opened, I want a command such as the following to be automatically run so that I can use ls instead of dir.  doskey ls=dir   How can this be done?
83164
How can I write a program in Java that will execute another program? Also, the input of that program should be given from our program and the output of that program should be written into a file.  This is my small set of code to get its output:  Process p = Runtime.getRuntime().exec("C:\\j2sdk1.4.0\bin\\helloworld.java"); BufferedReader input =         new BufferedReader(new InputStreamReader(p.getInputStream())); while ((line = input.readLine()) != null)    System.out.println(line);  input.close();   This was my set of code but this throws an IOException.
8631
I am trying to launch the UI of a processing algorithm using Python script but I cannot find a simple way for it (aside double clicking on it in the process toolbox of course). The plugin is a water network simulator and I just want to launch its pre-processing UI without using process.runalg() because this needs to enter arguments and I don't need it.  Some ways would be to trigger processes available in process toolbox or sending command to commander from python console. but I have no clue how and I am searching for 2 hours now, no results.
1878
How do I have a Python script that a) can accept user input and how do I make it b) read in arguments if run from the command line?