I'm using python 3.5 and downloaded an updated version of my project from bitbucket.
When I try to makemigrations I get:
django.core.exceptions.FieldDoesNotExist: users.user has no field named 'surname'
Is there a way to find where this is executed? Because in my models.py I have users.lastname.
Thank you in advance!
You can grep for the .surname field
In Linux just open a terminal at your root dir of the project, and type grep -irn .surname
The i is "Case Insensitive"
The r is "Recursive"
and the n is "Line Number"
This will tell you the file and where in the file the issue is.
if you don't have linux, and you don't bave bash for windows on your machine, then it's well worth downloading cygwin, and you can issue the same command as above to search for the call to .surname
Related
I have a problem and hope someone can help me. I am currently trying to write a script for Termux or Termux:Task. My script currently looks like this:
#!/data/data/com.termux/files/usr/bin/bash
cd /./sdcard/www/public/
wp post list sleep 5
Every time I load the script I get the following error message:
/data/data/com.termux/files/usr/bin/wp: /usr/bin/env: bad interpreter: No such file or directory.
I've been looking for a solution to my problem for hours, unfortunately without success.
I am using an extension for Termux called "WordPress CLI". When I start termux and enter the commands individually, everything works. But as soon as I write the commands into a sh script and start it doesn't work anymore. :(
Can anyone help me?
Thanks a lot
This is simple error you can fix it by replacing !/data/data/com.termux/files/usr/bin/bash. With #!/data/data/com.termux/files/usr/bin/bash
Please tell if you get error again
Try with #!/usr/bin/env bash in the shebang line.
Termux-exec allows you to execute scripts with shebangs for traditional Unix file structures. So shebangs like #!/bin/sh and #!/usr/bin/env python should be able to run without termux-fix-shebang.
From https://wiki.termux.com/wiki/Termux-exec
According to doc:
Why do I keep getting a '/bin/sh bad interpreter' error?
This error is thrown due to access script interpreter at nonexistent
location.
Termux does not have common directories like /bin, /sbin, /usr/bin at
their standard place. There is an exception for certain devices where
/bin is a symbolic link to /system/bin, but that does not make a
difference.
Interpreters should be accessed at this directory only:
/data/data/com.termux/files/usr/bin
There are three ways to fix this:
Install termux-exec by using pkg install termux-exec. It won’t affect the current session, but after a restart should work without
any setup. Not needed if your Termux is up to date. If still not
working, try the next workaround.
Use command termux-fix-shebang to fix the shebang line of specified file.
Use termux-chroot from package proot to setup a chroot environment mimicking a normal Linux file system in Termux.
termux-fix-shebang my_script.py of second method work for me, which it modify the shebang(first line of my_script.py) from #!/usr/bin/env python to #!/data/data/com.termux/files/usr/bin/env python. Since /usr/bin/ is not exist in Android, that's why it throws the error /usr/bin/env: bad interpreter: No such file or directory. The other solution is run with python my_script.py, neither of my_script.py nor ./my_script.py.
In my test, termux-exec of the first method only work if I added correct shebang in main script(child OR child of child script no need) and ran command export LD_PRELOAD=/data/data/com.termux/files/usr/lib/libtermux-exec.so.
And for the issue of this question, error shows /usr/bin/env in the middle with /data/data/com.termux/files/usr/bin/wp even though the shebang of script #!/data/data/com.termux/files/usr/bin/bash looks ok, it means that wp command (located at /data/data/com.termux/files/usr/bin/wp) used inside the script contains shebang #!/usr/bin/env wp and should modify it to #!/data/data/com.termux/files/usr/bin/env wp too. termux-exec of first method should fix this specific case too(already has correct shebang in main script).
So i'm studying python crashcourse and after finishing the basics I jumped to the django project.
I created a virtual env, installed django and created an app with manage.py startapp command.
I use Visual Studio Code, and the problem is when I go to models.py it gives an error that it's unable to find django.db module
unable to import error
Now I understand this is because of the file structure, which is as per my research the correct one, and I followed the book carefully, however i don't know how to fix this and I feel that i'm missing something.
This is my file structure for the virtual environment
file structure
Any idea how to fix it ? :)
Thanks in advance
Thank you Incognos !
To be more specific The solution was :
enter "code ." in the terminal and then a new VS opens.
Ctrl+Shift+P -> Select Interpreter
select the environment that starts with ./env or .\env
run Ctrl+Shift+` to activate it
VS is not seeing your virtualenv. You need to activate it for VS code so that it knows that django is installed in the virtualenv see https://code.visualstudio.com/docs/python/environments
it happens because pylint is installed outside your virtual environment. So install pylint inside virtual environment with this command (pip install pylint).
Note: If you're using Visual Studio Code - Insiders you'll use code-insiders . instead of the code . command.
Then, a new window will open and you can set your virtual environment interpreter there.
Reference: https://github.com/Microsoft/vscode/issues/6627
in my case, the problem was solved by opening VS-Code in the directory where virtualenv is located.
Click Ctrl-shift-p to access the Command pallete, then search for Python: Select Interpreter. Click on it and then select on the one that has been recommended by the editor.
I am new to python, just got the learning python book and got stuck with the spam.py in the command line. The book says to make a file named spam.py and then ask python to run this by typing
%python spam.py
I have added the python to my PATH as it was C:\Python27 so I can call Python in the Windows CMD, but this just will not run. The error I receive is
>>>python spam.py
File "<stdin>", line 1
python spam.py
^
SyntaxError: invalid syntax
I appreciate any help that you can give.
Your problem is that you're trying to run your code from within the Python interpreter itself (the >>> prompt is the giveaway here since that's the Python prompt).
Exit from the interpreter (with CTRL-Z and ENTER for Windows) and run it from cmd.exe (the c:\> is the prompt in the example below):
c:\> python spam.py
From within the interpreter, you can also run an external file with:
execfile('spam.py')
Could you post the code from spam.py...
You seem to be trying to run the spam.py from the Python interpreter. Go to where the file is in Windows Explorer and launch it from there, using the C:\Python2.7\python.exe CLI.
By the way, since you didn't understand the syntax error warning, please see:
http://dictionary.reference.com/browse/SYNTAX
http://dictionary.reference.com/browse/SEMANTICS
You are trying to execute Python script file within the interpreter. Come out from the Python interpreter by pressing CTRL+Z and then ENTER key.
Then execute with the command :
Say, C:/> python spam.py
In order to run a python program you have to run program in Command Line not in Python Interpreter (press Windows Sign + R and type cmd.exe)
Moreover you have to remember to be exactly in the directory where your file is saved, e.g.:
If the file file is C:\Python27\spam.py you have to be in C:\Python27.
To change the directory:
use dir to display the folders and files in current place
use cd to change your directory (e.g. C:\Python27\>cd Spam moves you to C:\Python27\Spam
use Tab key to autocomplete names of the commands, folders and files
As you said you have added Python to PATH and followed my instructions, the statement below should work perfectly
python spam.py
Hope I could help.
If for example, your file is in G: drive, type this in cmd:
python G:/myfile.py
Basically, type in the path. Just doing "cd" won't work in Python
I just installed the Bitnami DjangoStack and want to know how to create a new project in Windows.
I tried opening the python.exe (similar to command prompt) and tried typing in:
django-admin.py startproject testproject
which is what all the articles seem to say to start with.
I am getting an invalid syntax error. I'm assuming I'm missing something very basic?
Thanks!
You need to run django-admin.py from the command prompt.
The Python interactive interpreter (what you get when you open up python.exe) is for typing in Python code and running it line by line. If you want to run Python code that is in a file, you need to run it from command prompt.
Note that if that doesn't work, you might need to put python before it, and you also might need no specify the full path (usually something like python C:/Python27/Scripts/django-admin.py, assuming you're on Python 2.7.)
I'm trying to build node.js on my Windows XP box (Yes, it IS painful, thanks.) using Cygwin following Ryans instructions here.
Sadly calling "./configure" from the node source directory barfs up this:
$ ./configure
/home/LWE/sources/node.js/wscript: error: Traceback (most recent call last):
File "/home/LWE/sources/node.js/tools/wafadmin/Utils.py", line 274, in load_module
exec(compile(code, file_path, 'exec'), module.__dict__)
File "/home/LWE/sources/node.js/wscript", line 12, in <module>
import js2c
File "/home/LWE/sources/node.js/tools/js2c.py", line 35, in <module>
import jsmin
File "/home/LWE/sources/node.js/tools/jsmin.py", line 1
../deps/v8/tools/jsmin.py
^
SyntaxError: invalid syntax
I'm absolutely not into Python so I'm having a hard time figuring this out. Am I missing some dependency or what?
I'd expect that there is some simple little configuration switch that I have to turn, to make this work. I just don't know where/what/why/...
I compiled node.js on my Mac before from the very same sources and that worked like a charm. And I also can't imagine that the build script from the node repository itself is broken.
PS: It's a totally fresh and up to date Cygwin installation with Python 2.6.5.
I also had a problem getting nodejs to compile using cygwin - also a Python issue. I eventually found a reference to having to rebase the cygwin DLL links to make everything work. Of course I couldn't find my original source for help. But I remembered enough to find similar help.
So from http://avalanche123.tumblr.com/post/855374337/nodejs-mongodb-tinyurl
I remembered that you can stop all cygwin processes, run ash (a minimal shell) that is typically found at C:\cygwin\bin\ash.exe and then, in this shell, run "/usr/bin/rebaseall"
Once I had run the rebaseall command I could, using the normal cygwin shell, successfully run the ./configure script for the nodejs source and proceed to "make" and "make install" nodejs.
This is old, but for anyone referencing this page: jsmin.py is a symbolic link. If you are using Git from msysGit in Cygwin, symbolic links will not be created properly. The Git client that comes with Cygwin deals with these pretty decently most of the time, however every now and then it barfs. If you bring up jsmin.py in an editor, you will see it actually contains the path to the file it is supposed to be linking to. To fix this and move on to compiling:
# from the node.js source directory, run:
% cd tools
% ln -fs `cat jsmin.py`
This will recreate the symlink pointing to the proper location. From here, re-run ./configure and you are all set.
A full set of build instructions is available at Github.
I had no problems using Ryan's current instructions -- until I tried install ing NPM as well, and then I got no output. If you are using cygwin and installing node.js, be sure to use the "works" tag when you git the file, instead of a specific version number. Otherwise, no output/non working npm.
Now to figure out getting mongo setup properly...