When I use vim to update my environmental variables (in ~/.bashrc), PyCharm does not get the updates right away. I have to shut down the program, source ~/.bashrc again, and re-open PyCharm.
Is there any way to have PyCharm source the changes automatically (or without shutting down)?
When any process get created it inherit the environment variables from it's parent process (the O.S. itself in your case). if you change the environment variables at the parent level, the child process is not aware of it.
PyCharm allows you to change the environment variables from the Run\Debug Configuration window.
Run > Edit Configurations > Environment Variables ->
In my case pycharm does not take env variables from bashrc even after restarting
Pycharm maintains it's own version of environment variables and those aren't sourced from the shell.
It seems that if pycharm is executed from a virtualenv or the shell containing said variables, it will load with them, however it is not dynamic.
the answer below has a settings.py script for the virtualenv to update and maintain settings. Whether this completely solves your question or not i'm not sure.
Pycharm: set environment variable for run manage.py Task
I recently discovered a workaround in windows. Close Pycharm, copy the command to run Pycharm directly from the shortcut, and rerun it in a new terminal window: cmd, cmder, etc.
C:\
λ "C:\Program Files\JetBrains\PyCharm 2017.2.1\bin\pycharm64.exe"
I know this is very late, but I encountered this issue as well and found the accepted answer tedious as I had a lot of saved configurations already.
The solution that a co-worker told me is to add the environment variables to ~/.profile instead. I then had to restart my linux machine and pycharm picked up the new values. (for OSX, I only needed to source ~/.profile and restart pycharm completely)
One thing to be aware is that another coworker said that pycharm would look at ~/.bash_profile so if you have that file, then you need the environment variables added there
In case you are using the "sudo python" technique, be aware that it does not by default convey the environment variables.
To correctly pass on the environment variables defined in the PyCharm launch configuration, use the -E switch:
sudo -E /path/to/python/executable "$#"
This is simply how environment variables work. If you change them you have to re-source your .bashrc (or whatever file the environment variables are located in).
from dotenv import load_dotenv
load_dotenv(override=True)
Python-dotenv can interpolate variables using POSIX variable expansion.
With load_dotenv(override=True) or dotenv_values(), the value of a variable is the first of the values defined in the following list:
Value of that variable in the .env file.
Value of that variable in the environment.
Default value, if provided.
Empty string.
With load_dotenv(override=False), the value of a variable is the first of the values defined in the following list:
Value of that variable in the environment
Value of that variable in the .env file.
Default value, if provided.
Empty string.
Related
I have an environment file named .env337_dev. I need to run this file to set the environment before running another command. How to run this file?
Inside the file, it contains several variables like this
export AB_HOME=/et/dev/abinitio/sit1/abinitio-V2 #/gcc3p32 # for 32-bit
export PATH=${AB_HOME}/bin:${PATH}
Apart from . ./.env337_devcommand which will run and set the environment, is there any other way to run this file ?
Are you looking for the user-specific .bashrc (bash is the default shell on RHEL 6) or a system-wide /etc/profile.d/<something>.sh? For the first, you would edit $HOME/.bashrc and append a line like . .env337_dev (it's still run before any "regular" command, because .bashrc is the Bash standard personal initialization file). Second option suggests that you use an absolute path.
If this doesn't answer your question, a more specific question and/or more details would be very helpful.
You tagged this ab-initio, so you should only be setting a very few environment variables, including:
export AB_HOME=<path-to-co>operating-system>
export PATH=$AB_HOME/bin:$PATH
If you are working with Ab Initio web applications:
export AB_APPLICATION_HUB=<path-to-application-hub>
export JAVA_HOME=<path-to-jdk>
export PATH=$JAVA_HOME/bin:$PATH
and specific settings for different applications, e.g.
export AB_MHUB_HOME=<path-to-metadata-hub-installation>
Typically you put those into the file .profile in your home directory, which shells evaluate for interactive sessions.
What exactly is the difference between these two operations?
source activate python3_env && python my_script.py
and
~/anaconda3/envs/python3_env/bin/python my_script.py ?
It appears that activating the environment adds some variables to $PATH, but the second method seems to access all the modules installed in python3_env. Is there anything else going on under the hood?
You are correct, activating the environment adds some directories to the PATH environment variable. In particular, this will allow any binaries or scripts installed in the environment to be run first, instead of the ones in the base environment. For instance, if you have installed IPython into your environment, activating the environment allows you to write
ipython
to start IPython in the environment, rather than
/path/to/env/bin/ipython
In addition, environments may have scripts that add or edit other environment variables that are executed when the environment is activated (see the conda docs). These scripts can make arbitrary changes to the shell environment, including even changing the PYTHONPATH to change where packages are loaded from.
Finally, I wrote a very detailed answer of what exactly is happening in the code over there: Conda: what happens when you activate an environment? That may or may not still be up-to-date though. The relevant part of the answer is:
...the build_activate method adds the prefix to the PATH via the _add_prefix_to_path method. Finally, the build_activate method returns a dictionary of commands that need to be run to "activate" the environment.
And another step deeper... The dictionary returned from the build_activate method gets processed into shell commands by the _yield_commands method, which are passed into the _finalize method. The activate method returns the value from running the _finalize method which returns the name of a temp file. The temp file has the commands required to set all of the appropriate environment variables.
Now, stepping back out, in the activate.main function, the return value of the execute method (i.e., the name of the temp file) is printed to stdout. This temp file name gets stored in the Bash variable ask_conda back in the _conda_activate Bash function, and finally, the temp file is executed by the eval Bash function.
So you can see, depending on the environment, running conda activate python3_env && python my_script.py and ~/anaconda3/envs/python3_env/bin/python my_script.py may give very different results.
I switched to zsh from bash. I updated the shell in Preferences > Terminal settings inside RubyMine.
But, now environment variables are not being loaded inside my Rails application. I can still access them inside the terminal in RubyMine editor!
I tried printing the value of environment variable inside a yml file (where all the DB related environment variables are required). I could access the home variable but not custom variables set by me.
Database.yml file:
Output while starting Rails server in Rubymine:
Output inside Rubymine terminal:
My /etc/zshrc:
DB settings inside my vaibhavatul47_zsh_profile.sh file:
Automatic loading Environment variables from bash into IntelliJ works while reading and loading from zsh doesn't work for Intellij.
Starting IntelliJ from Terminal will load environment variables from zsh too, please try following:
open -a "IntelliJ IDEA"
Note: here IntelliJ IDEA is name of my application, in case you have renamed your IntelliJ application to something else please enter that.
Hope this helps!
Check that your env var are loaded correctly in the terminal and then open IDE from the terminal. Then check if the build configuration env vars contains the profile env vars.
Before opening the idea make sure your environment variables are actually loaded when running the terminal:
open your zsh profile (vim ~/.zshrc)
insert a test env var (something like TEST_1="mytest")
restart the terminal and check if you see TEST_1 value (echo $TEST_1)
In case you see TEST_1 value open intelij idea by entering "idea ."
Now, open your module build configuration and look for the env vars list, check if they contain your zsh env vars (or you can type "echo TEST_1" in the idea terminal)
gl:)
I am setting an environment variable in Ubuntu 14.04 for a script to use it.
I opened the terminal and did:
export VARNAME=/home/me/folder/folder2
And then run the script and everything works fine. But anyway as soon as I close my session, the variable seems to disappear and I have to declare it again like the first time.
To set an environment variable that doesn't get erased with the closing of the terminal (Ubuntu 16.04), follow these steps:
Open .bashrc file by using the text editor of your choice. For me, it was
code ~/.bashrc as I use VS Code, but you can use vi ~/.bashrc or subl ~/.bashrc.
Add the environment variable using export VARNAME=/home/me/folder/folder2
Save the file and close.
The variable will persist even after the terminal is closed.
Actually if you set the variable via terminal it will last till shutdown. If you want to set permanent variable you have to do the following.
$ vi ~/.bash_proflle
// set the variable in the file
exit by pressing esc key and type :wq Now the path is set.
I have an Installer that assigns an Environment variable using setx command
Afterwards, that installer invokes a command line that uses this enviroment variable but in that context the variable is still empty.
If I invoke the command line independently the variable is read properly.
Why is that? and how can I overcome that?
I've experimented extensively with SETX. Variables set via SETX cannot be seen in the process or script that sets them, unless you programmatically re-read the pertinent Registry key.