I installed Anaconda3 so I can create environments and install different packages in each environment. But I fail to understand the difference between the Python in and I can seem to access Python 3.6.5 Anaconda from both, why is that? And, what is the difference between both? Furthermore, I would like to install packages to a single Python environment only.
Tag: shell
Set shell environment variable via python script
I have some instrument which requires environment variable which I want to set automatically from python code. So I tried several ways to make it happen, but none of them were successful. Here are some examples: I insert following code in my python script I created bash script(env.sh) and run it from python: I also tried os.putenv() and os.environ*[“ENV_VAR”] =
“Syntax error: Unterminated quoted string” error when calling a bash script from Python
I have a situation where, I need to call a bash script inside a python script which is in turn called inside another python script. download-output-files.py: watcher.py: copy_output_file.sh: When I run download-output-files.py , it calls watcher.py , which in turn calls copy_output_file.sh and below is the error I face: When I run the same commands in Python shell, it runs
how to check which version of nltk, scikit learn installed?
In shell script I am checking whether this packages are installed or not, if not installed then install it. So withing shell script: but it stops shell script at import line in linux terminal tried to see in this manner: which gives nothing thought it is installed. Is there any other way to verify this package installation in shell script,
Shell – Trying to output last portion of a logfile (Time-stamp is the separator)
I would like to read in a logfile into shell, and output the last logged event that had occurred. These logs are selenium-python automated test results that I am using in larger script. This script requires the last chunk of the log. Here is an example of one of the last logged events from an example output file: The logfile
Change working directory in shell with a python script
I want to implement a userland command that will take one of its arguments (path) and change the directory to that dir. After the program completion I would like the shell to be in that directory. So I want to implement cd command, but with external program. Can it be done in a python script or I have to write
What is the subprocess.Popen max length of the args parameter?
I am using Popen function from the subprocess module to execute a command line tool: The tool I am using takes a list of files that it then processes. In some cases, this list of files can be very long. Is there a way to find the max length that the args parameter can be? With a large number of
os.system() execute command under which linux shell?
I am using /bin/tcsh as my default shell. However, the tcsh style command os.system(‘setenv VAR val’) doesn’t work for me. But os.system(‘export VAR=val’) works. So my question is how can I know the os.system() run command under which shell? Answer os.system() just calls the system() system call (“man 3 system”). On most *nixes this means you get /bin/sh. Note that
How do I execute a program or call a system command?
How do I call an external command within Python as if I had typed it in a shell or command prompt? Answer Use the subprocess module in the standard library: The advantage of subprocess.run over os.system is that it is more flexible (you can get the stdout, stderr, the “real” status code, better error handling, etc…). Even the documentation for