I have a Fortran program and want to execute it in python for multiple files. I have 2000 input files but in my Fortran code I am able to run only one file at a time. How should I call the Fortran program in python?
My Script:
from numpy import f2py
with open("phase1.f") as sourcefile:
sourcecode = sourcefile.read()
f2py.compile(sourcecode, modulename='add')
Error:
Could not locate executable C:\Users\Vishnu\Anaconda2\python.exe
Executable C:\Users\Anaconda2\python.exe does not exist
For some starting places, take a look at https://cvw.cac.cornell.edu/python/combine. And consider F2Py, which is now included with numpy, I believe.
Regarding file paths, you may run into python interpreting C:\ as escaped, which I think is happening in your output above:
C:UsersVishnuAnaconda2python.exe
Try using:
'C:\\Users\\Vishnu\\Anaconda2\\python.exe'
or
r'C:\Users\Vishnu\Anaconda2\python.exe'
for example. See if that fixes the missing file problem.
[UPDATE]
I suspect the problem is somewhere in your user environment variables. Check the paths set there.
C:UsersVishnuAnaconda2python.exe
is trying to run your python, which is probably installed in:
C:\Users\Vishnu\Anaconda2\python.exe
Try simply typing 'environment' in your Start menu in windows. Check the paths there. That's a good place to start looking. (This may depend on which Windows you are using.)
Related
i have matlab script which using few matlab libraries like Map ToolKit. I can run this script on MATLAB without any error. But i need to run this with QGIS and get output files.
Simply, script asks few question about Map Tools and get like .shp files and give output folder.
So to get these output files, i tried 3 ways:
I tried to run this code on Python Console. For that i installed matlab.engine and called script just like in documentation. But these matlab.engine doesn't let python to use matlab's own libraries so error on using shapeinfo function. It just let python to use few variables i think. So after failing on this i tried second way:
I created executable matlab file to run .exe file on python console. In here, there is a two way to get this exe file. First one is let you smaller file and doesn't include matlab runtime so you need to add matlab runtime on your path and i did it. Actually Matlab does that as default and i checked that it was okey. Executable file runs perfectly after clicking or on normal python scripts which is running on through CMD. But if i call Python Script in QGIS, it trying to open but returns Matlab runtime dll missing error. After i tried to compile with matlab runtime selection and results were same.
Lastly, i tried to run matlab.exe -r "try, run SCRPIT_PATH\script.m; end; quit on CMD and it works fine but if i call this on QGIS Python Console with os.system or subprocess.call functions, cmd appearing and closing immediately.
I guess QGIS doesn't let you to open some other applications somehow and i need to let it run. Or i just need to find import matlab libraries to python for work perfectly. I would be pleasure if you give any suggestion. Any solution for these ways or a different way would be great. Thanks.
I am trying to compile a .tex file in a Python script using pdflatex. The command pdflatex filename.tex works when I run it from the command line on Windows. However, attempting to run os.system("pdflatex filename.tex") just spits out 1 into the Python console and does not compile a pdf. I've also tried putting in the full file path similar to this person solved their problem but the same thing happens. Similarly, subprocess.call(['pdflatex', 'filename.tex']) just outputs a 1 and does not do anything.
It seems someone else has encountered the same problem in this thread, but on Mac instead of Windows. (But regardless of the operating system, they didn't find an answer.)
Why might this be happening?
EDIT: I've just discovered a solution. The script runs successfully (using the os.system approach) when I run the .py file using the command line. Previously I was attempting to run the script from RStudio, both using reticulate::source_python(filename) and also line-by-line via the reticulate REPL. Seems like the problem may actually be coming from R's reticulate package rather than anything to do with Python.
Fortunately RStudio has a terminal window so this doesn't end up being too inconvenient!
I've recently started programming in python for my job, so I'm quite new to it. My goal is to create a graphic interface so that the user can run a program that I have been developing in R. The interface is done using the Tkinter module from python (version 3.3).
The problem comes when I have to call the R interpreter from python to run an R file that is generated (run.R file). The curious thing is that this only happens when I try to run my script in Windows, not in Linux. In both cases, I am trying to use the os module from python.
This is the code that is not working for Windows:
os.chdir(outRW) #first I change the working directory to the one where the run.R file is
os.system("C:\R-3.6.1\bin\Rscript run.R")
When I execute this, it changes the directory successfully, but when it comes to calling the R interpreter, it shows me this error:
The filename, directory name, or volume label syntax is incorrect.
However, I have tried running the "C:\R-3.6.1\bin\Rscript run.R" command in the Windows Command Prompt and it works perfectly.
I have also tried adding the path to R to the environmental variables, but again I could only make it work in the Command Prompt, not with python.
I guess there is something very obvious that I am missing here, but I cannot see it.
Any help or comments are very much appreciated!
Thank you!
Use double backslashes.
In R you need to use double backslashes \\, otherwise it'll try to interpret it as an Escape Character.
Use this and it will work:
os.system("C:\\R-3.6.1\\bin\\Rscript run.R")
Hope this helps.
Some programs can be executed from anywhere with a single one-word command. An example of this is youtube-dl, which is a python program that can be executed with the simple command youtube-dl [input]. As far as I have understood, this is simply because there exists a file called /usr/bin/youtube-dl, and /usr/bin is in PATH. However, I do not understand what I have to do to make something like this myself. Right now, I have a python project called testproject that includes a python program like this:
~/testproject/files/myownprogram.py
What do I have to do to make this a binary executable such as youtube-dl?
I know I can make an alias mop="python ~/testproject/files/myownprogram.py", and this is also what I have done, and it works fine. That is, I can write $ mop, and successfully run my program.
But for curiosity's, and learning's, sake, I want to know how to make a file such as the /usr/bin/youtube-dl file, removing the need for aliases.
I find this hard to find information about in search engines...
Any help is greatly appreciated! :-)
Edit:
My question differs from the one marked as duplicate, in that I'm not looking to execute it as a .sh-script. I simply want to execute it as a suffix-less one-word command, similar to all the other executables that are in /usr/bin. :-)
Ex.: $ myown should run my program, without the need for aliases or writing ".sh" or ".py" at the prompt. That is, I want to have a file /usr/bin/myown that somehow runs my testproject at the simple command myownfrom anywhere.
The applications are being executed "from anywhere" because the system has a specific hierarchy of places it looks for these files (the current directory, then the system path). So, it knows to look in /usr/bin because that's in your system path.
As to ensuring it to use python when it's executed, you should add the following to the top of the file (check out some python application source code and you'll see this):
#!/usr/bin/env python
This tells the system to execute the script using the systems "python" command.
I have created a little pre-commit hook in python. This hook works like a charm under Linux, but in Windows it keeps telling me:
error: cannot spawn .git/hooks/pre-commit: No such file or directory
I know there have been similar questions here about the same issue and the conclusion seams to be the shebang. My script has this on the very first line:
#!F:\PortableApps\PortablePython3.2\App\python.exe
It's also interesting to note that executing the script simply by writing .git/hooks/pre-commit works wonderful, but as soon as I try to commit, git spits out the above message.
Another interesting thing is, when I convert the encoding from ANSI to UTF-8 (using Notepad++), I get the following error when trying to execute the script:
.git/hooks/pre-commit: Cannot execute binary file
I'm using the following tools:
PortablePython 3.2.1.1
msysgit 1.7.6 (Portable)
I used the proxy-approach to make the python script work under windows (with msysgit). The complete script (with description on how I did it) might be found here: https://gist.github.com/1839424
Here is the important part about making it work under Windows
If you're working with Windows (and "msysgit"), it's a little more complicated. Since "msysgit" seems to have a problem handling the SHEBANG, you'll have to use a little trick to make the script executable (further information on this problem can be found here).
In order to make the script work, you'll want to remove the SHEBANG from the Python script ("pre-commit.py") and use a wrapper bash-script to call the interpreter. This script should look something like this:
#!/bin/sh
python .git/hooks/pre-commit.py
Store this script as a file called "pre-commit" (no file-ending). This assumes that you have Python in your PATH. If you don't, you can also specify the full path to your interpreter-executable.
This script will be called by "git commit" and call the python-script to check for the huge files. The path after the SHEBANG should not be changed, as "msysgit" will remap it automatically. You must specify a path relative to the repo-root for the Python script to be executed (because thats from where the script is called).
Afterwards you'll want to copy both the wrapper-file ("pre-commit") and the Python-script ("pre-commit.py") to your repos ".git/hooks"-directory, personalize the Python-script ("max_file_size" and "git_binary_path") and mark the "pre-commit"-file executable.