![]() C - Break (sometimes you have to do it twice).This is a "control key" command and there are a number of them that will be helpful: While (Count S" and the scrolling will pause. In Wing, enter the following code to printout a large number of values. ![]() Let's make a much more interesting script. Try some other print statements and some math in the script and see what the output looks like. You've now run a Python script from the command line. You should see the "Hello World" appear in the window. Try that now for the script you just created. Just type"python " and you'll see the "print" output appear below the command. Once you're in the folder that contains "python.exe" it's easy to run a script. Leaving the command window you opened in the previous section open, open Wing and enter the following text and save it to a file. You can use this tool to practice Python commands if you wish. You're actually executing Python scripts one line at a time just as we do when we "single-step" in Wing. You should see the result printed on the next line. Type "x=10*3" or the like, and hit return. You should see "hello world" printed on the next line. Type "print("hello world")" and hit return. Type "python" into the command line and you'll see the "Python Command Prompt" appear. This is the Python interpreter that we've been running in Wing and ArcGIS all along. Type "dir" in this folder and you'll see "python.exe". Use "cd" to change your directory to the folder with the current version of Python you want to use (i.e. There are a number of commands that might be helpful and you can see them all by typing "help" into the command prompt. " to "up" or "out of" the current directory. Replace "DirectoryPath" with either a full path or the name of a folder in the current folder to go into that folder. You can change the directory by just typing "cd DirectoryPath" into the command prompt. Another command is "cd" which stands for "Change Directory". Type it now and see that the contents are the same as if you opened the "C:" drive in windows. The command line is definitely a throw-back but it still is important and very vaulable for running batch jobs.Ī simple command is "dir" which stands for "directory" and will list the contents of the current directory. The command prompt is what is left of the old MS-DOS "command line" interface that we used to talk to computers before the Macintosh made Graphical User Interfaces or GUIs popular. This shows that you are at the "C:" drive and can now type commands into the command line and see them execute. You should see a black window appear with a prompt something like "C:/>". When you see a text box, type "cmd" for "command" and press return. If you do not see "Run" you can also go do "Start->Programs->Accessories->CommandPrompt". You can enter the command prompt on MS-Windows by clicking on "Start" and then click on "Run". Using the Python Command Interpreter Using the Command Prompt (going back to the 80's) While command line interfaces are largely replaced by GUIs for regular users, command line interfaces offer advantages to us developers because they are much easier to create and allow us to just printout lots of information on what our scripts are doing. It dates back to computer systems form the 1970's including VAX and CPM. The command line is the old interface that predates windows-based or GUI interfaces. When you are processing large numbers of files in a "batch" mode, you'll probably want to run them from the command line. You've seen how to run Python scripts from inside Wing and inside ArcGIS. Now, after some fiddling I got this to work, except that some of these scripts also use subprocesses to run linux-specific commands such as grep, which are not recognized as commands, since the wt commandline I used to launch the script is actually using Windows, which of course won't recognize the linux commands.Running Python Scripts from the Command Line 1. What I'm actually trying to do is use Python subprocesses via Popen to launch multiple python scripts within Windows Terminal (using WT's tabbing and panes to organize the running processes). It doesn't work for my specific use case (which to be fair I didn't mention before because it is admittedly a bit convoluted):.So it still isn't using my linux environment the way I have it set up. But if I use Python3 instead, it opens Python 3.8.10 (my Ubuntu system python version). Using the command you provided, it cannot find Python as a command at all. From within bash if I type "Python" it opens Python 3.10.4. ![]() It doesn't seem to play nicely with pyenv shims (at least I think that was the cause). I'd like to keep my workflow within bash without switching to cmd prompt.
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