running subprocess with combined cd and pwd
Question:
I run subprocess in jupyter to get the core path.
I have to go one folder up and then call pwd
Running:
import subprocess
mypath=subprocess.run("(cd .. && pwd)")
leads to a "No such file or directory: ‘(cd .. && pwd)’ error. I guess the cd calls a directory call.
Can you help me out?
Answers:
for a single shell command (where the arguments are not separated from the command), you need to set shell = True in subprocess.run. Do
subprocess.run("cd .. && pwd", shell = True)
and it will work
Frame challenge: subprocess is the wrong tool for this job.
import os.path
mypath = os.path.abspath(os.path.dirname(os.getcwd()))
…is both faster and portable to non-UNIXy operating systems.
As others have mentioned, no subprocess or shell is required for this.
import os.path
os.path.split(os.getcwd())[0]
I run subprocess in jupyter to get the core path.
I have to go one folder up and then call pwd
Running:
import subprocess
mypath=subprocess.run("(cd .. && pwd)")
leads to a "No such file or directory: ‘(cd .. && pwd)’ error. I guess the cd calls a directory call.
Can you help me out?
for a single shell command (where the arguments are not separated from the command), you need to set shell = True in subprocess.run. Do
subprocess.run("cd .. && pwd", shell = True)
and it will work
Frame challenge: subprocess is the wrong tool for this job.
import os.path
mypath = os.path.abspath(os.path.dirname(os.getcwd()))
…is both faster and portable to non-UNIXy operating systems.
As others have mentioned, no subprocess or shell is required for this.
import os.path
os.path.split(os.getcwd())[0]