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How to goto/access home directory using python subprocess.run()

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0

While using python3 subprocess.run(), I need to got/access my home directory. I tried the below commands but their syntax is incorrect. Please advice me on the correct syntax that I should use. Thank you.

Test Script:

import subprocess as sp
sp.run(['cd', '$HOME'], stdout=sp.PIPE, stderr=sp.PIPE)
sp.run(['cd', '$HOME'], stdout=sp.PIPE, stderr=sp.PIPE)
sp.run(['cd', '~'], stdout=sp.PIPE, stderr=sp.PIPE)

python subprocess

share|improve this question

asked Mar 28 at 12:19

Sun BearSun Bear

2,09911 gold badge1414 silver badges3838 bronze badges

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  what do you plan to do after that ?
  
  – Kunal Mukherjee
  Mar 28 at 12:22
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @KunalMukherjee cd is just a test cmd. In reality, I need to run some program in bash that references the home directory. I am trying to get the referencing syntax for home dir correct. Thanks for asking.
  
  – Sun Bear
  Mar 28 at 12:41
  
  

  
  
  
  

add a comment
 | 

0

While using python3 subprocess.run(), I need to got/access my home directory. I tried the below commands but their syntax is incorrect. Please advice me on the correct syntax that I should use. Thank you.

Test Script:

import subprocess as sp
sp.run(['cd', '$HOME'], stdout=sp.PIPE, stderr=sp.PIPE)
sp.run(['cd', '$HOME'], stdout=sp.PIPE, stderr=sp.PIPE)
sp.run(['cd', '~'], stdout=sp.PIPE, stderr=sp.PIPE)

python subprocess

share|improve this question

asked Mar 28 at 12:19

Sun BearSun Bear

2,09911 gold badge1414 silver badges3838 bronze badges

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  what do you plan to do after that ?
  
  – Kunal Mukherjee
  Mar 28 at 12:22
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @KunalMukherjee cd is just a test cmd. In reality, I need to run some program in bash that references the home directory. I am trying to get the referencing syntax for home dir correct. Thanks for asking.
  
  – Sun Bear
  Mar 28 at 12:41
  
  

  
  
  
  

add a comment
 | 

While using python3 subprocess.run(), I need to got/access my home directory. I tried the below commands but their syntax is incorrect. Please advice me on the correct syntax that I should use. Thank you.

Test Script:

import subprocess as sp
sp.run(['cd', '$HOME'], stdout=sp.PIPE, stderr=sp.PIPE)
sp.run(['cd', '$HOME'], stdout=sp.PIPE, stderr=sp.PIPE)
sp.run(['cd', '~'], stdout=sp.PIPE, stderr=sp.PIPE)

python subprocess

share|improve this question

asked Mar 28 at 12:19

Sun BearSun Bear

2,09911 gold badge1414 silver badges3838 bronze badges

import subprocess as sp
sp.run(['cd', '$HOME'], stdout=sp.PIPE, stderr=sp.PIPE)
sp.run(['cd', '$HOME'], stdout=sp.PIPE, stderr=sp.PIPE)
sp.run(['cd', '~'], stdout=sp.PIPE, stderr=sp.PIPE)

share|improve this question

asked Mar 28 at 12:19

Sun BearSun Bear

2,09911 gold badge1414 silver badges3838 bronze badges

share|improve this question

asked Mar 28 at 12:19

Sun BearSun Bear

2,09911 gold badge1414 silver badges3838 bronze badges

asked Mar 28 at 12:19

Sun BearSun Bear

2,09911 gold badge1414 silver badges3838 bronze badges

asked Mar 28 at 12:19

Sun BearSun Bear

2,09911 gold badge1414 silver badges3838 bronze badges

2 Answers
2

active

oldest

votes

0

You can use os.environ:

home = os.environ['HOME']
import subprocess as sp
sp.run(['bash', 'cd', home], stdout=sp.PIPE, stderr=sp.PIPE)

This will not change your python interpreter working directory, for that purpose you might want to use:

home = os.environ['HOME']
os.chdir(home)

If you need to access subdirectories you can get the paths using os.path.join:

home = os.environ['HOME']
subdir = 'Documents' # or get the list of subdirs with os.listdir(home)
subdir_path = os.path.join(home, subdir)

share|improve this answer

edited Mar 28 at 13:11

answered Mar 28 at 12:24

dzangdzang

60933 silver badges1010 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Must I declare home = os.environ['HOME'] in each python class or at each python module?
  
  – Sun Bear
  Mar 28 at 12:27
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  you can use directly os.environ['HOME'] e.g. os.chdir(os.environ['HOME'])
  
  – dzang
  Mar 28 at 12:28
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I got this error msg: FileNotFoundError: [Errno 2] No such file or directory: 'cd': 'cd'. How to fix this? I am using python 3.6.
  
  – Sun Bear
  Mar 28 at 12:31
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  You need to call bash explicitly, see edit
  
  – dzang
  Mar 28 at 12:40
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thanks. How do I access/reference the children directories of home? E.g. home/Document or ~/Document. I could not get it to work.
  
  – Sun Bear
  Mar 28 at 12:54
  
  

  
  
  
  

 | 
show 5 more comments

0

@SunBear Try adding shell=True. It was not working earlier for you because subprocess can't find the test-cmd cd.

To understand more about shell=True you can go here Actual meaning of 'shell=True' in subprocess

share|improve this answer

answered Jul 8 at 6:34

Ashutosh RainaAshutosh Raina

111 bronze badge

add a comment
 | 

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0

You can use os.environ:

home = os.environ['HOME']
import subprocess as sp
sp.run(['bash', 'cd', home], stdout=sp.PIPE, stderr=sp.PIPE)

This will not change your python interpreter working directory, for that purpose you might want to use:

home = os.environ['HOME']
os.chdir(home)

If you need to access subdirectories you can get the paths using os.path.join:

home = os.environ['HOME']
subdir = 'Documents' # or get the list of subdirs with os.listdir(home)
subdir_path = os.path.join(home, subdir)

share|improve this answer

edited Mar 28 at 13:11

answered Mar 28 at 12:24

dzangdzang

60933 silver badges1010 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Must I declare home = os.environ['HOME'] in each python class or at each python module?
  
  – Sun Bear
  Mar 28 at 12:27
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  you can use directly os.environ['HOME'] e.g. os.chdir(os.environ['HOME'])
  
  – dzang
  Mar 28 at 12:28
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I got this error msg: FileNotFoundError: [Errno 2] No such file or directory: 'cd': 'cd'. How to fix this? I am using python 3.6.
  
  – Sun Bear
  Mar 28 at 12:31
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  You need to call bash explicitly, see edit
  
  – dzang
  Mar 28 at 12:40
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thanks. How do I access/reference the children directories of home? E.g. home/Document or ~/Document. I could not get it to work.
  
  – Sun Bear
  Mar 28 at 12:54
  
  

  
  
  
  

 | 
show 5 more comments

0

You can use os.environ:

home = os.environ['HOME']
import subprocess as sp
sp.run(['bash', 'cd', home], stdout=sp.PIPE, stderr=sp.PIPE)

This will not change your python interpreter working directory, for that purpose you might want to use:

home = os.environ['HOME']
os.chdir(home)

If you need to access subdirectories you can get the paths using os.path.join:

home = os.environ['HOME']
subdir = 'Documents' # or get the list of subdirs with os.listdir(home)
subdir_path = os.path.join(home, subdir)

share|improve this answer

edited Mar 28 at 13:11

answered Mar 28 at 12:24

dzangdzang

60933 silver badges1010 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Must I declare home = os.environ['HOME'] in each python class or at each python module?
  
  – Sun Bear
  Mar 28 at 12:27
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  you can use directly os.environ['HOME'] e.g. os.chdir(os.environ['HOME'])
  
  – dzang
  Mar 28 at 12:28
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I got this error msg: FileNotFoundError: [Errno 2] No such file or directory: 'cd': 'cd'. How to fix this? I am using python 3.6.
  
  – Sun Bear
  Mar 28 at 12:31
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  You need to call bash explicitly, see edit
  
  – dzang
  Mar 28 at 12:40
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thanks. How do I access/reference the children directories of home? E.g. home/Document or ~/Document. I could not get it to work.
  
  – Sun Bear
  Mar 28 at 12:54
  
  

  
  
  
  

 | 
show 5 more comments

You can use os.environ:

home = os.environ['HOME']
import subprocess as sp
sp.run(['bash', 'cd', home], stdout=sp.PIPE, stderr=sp.PIPE)

This will not change your python interpreter working directory, for that purpose you might want to use:

home = os.environ['HOME']
os.chdir(home)

If you need to access subdirectories you can get the paths using os.path.join:

home = os.environ['HOME']
subdir = 'Documents' # or get the list of subdirs with os.listdir(home)
subdir_path = os.path.join(home, subdir)

share|improve this answer

edited Mar 28 at 13:11

answered Mar 28 at 12:24

dzangdzang

60933 silver badges1010 bronze badges

home = os.environ['HOME']
import subprocess as sp
sp.run(['bash', 'cd', home], stdout=sp.PIPE, stderr=sp.PIPE)

home = os.environ['HOME']
os.chdir(home)

home = os.environ['HOME']
subdir = 'Documents' # or get the list of subdirs with os.listdir(home)
subdir_path = os.path.join(home, subdir)

share|improve this answer

edited Mar 28 at 13:11

answered Mar 28 at 12:24

dzangdzang

60933 silver badges1010 bronze badges

answered Mar 28 at 12:24

dzangdzang

60933 silver badges1010 bronze badges

answered Mar 28 at 12:24

dzangdzang

60933 silver badges1010 bronze badges

0

@SunBear Try adding shell=True. It was not working earlier for you because subprocess can't find the test-cmd cd.

To understand more about shell=True you can go here Actual meaning of 'shell=True' in subprocess

share|improve this answer

answered Jul 8 at 6:34

Ashutosh RainaAshutosh Raina

111 bronze badge

add a comment
 | 

0

@SunBear Try adding shell=True. It was not working earlier for you because subprocess can't find the test-cmd cd.

To understand more about shell=True you can go here Actual meaning of 'shell=True' in subprocess

share|improve this answer

answered Jul 8 at 6:34

Ashutosh RainaAshutosh Raina

111 bronze badge

add a comment
 | 

@SunBear Try adding shell=True. It was not working earlier for you because subprocess can't find the test-cmd cd.

To understand more about shell=True you can go here Actual meaning of 'shell=True' in subprocess

share|improve this answer

answered Jul 8 at 6:34

Ashutosh RainaAshutosh Raina

111 bronze badge

share|improve this answer

answered Jul 8 at 6:34

Ashutosh RainaAshutosh Raina

111 bronze badge

answered Jul 8 at 6:34

Ashutosh RainaAshutosh Raina

111 bronze badge

answered Jul 8 at 6:34

Ashutosh RainaAshutosh Raina

111 bronze badge