execute adb commands in cmd prompt from python script

Question

I am trying to execute adb commands in an automated way from python script. Please note that I am using python 2.7 in Windows. If I manually do it, the sequence is like this:

C:\Project\python>adb shell
login:<enter login id e.g. root>
Password: <enter password e.g. test>
Last login: Thu Feb  9 12:29:46 UTC 2017 on pts/0
~ # date
date
Thu Feb  9 12:55:06 UTC 2017

I am trying to handle this sequence from python script. I have tried using subprocess.call("adb shell date") but it fails saying that cannot execute commands without logging in. I am not sure how to to pass the login id and password. Sorry for the noob question, as I am very new to Python.

Appreciate your help guys !!

Cheers

CodenameLambda · Accepted Answer · 2017-02-09 11:23:08Z

1

Try subprocess.Popen:

import subprocess

cmd_input = """<enter login id e.g. root>
<enter password e.g. test>
date"""

process = subprocess.Popen(
    "adb shell",
    shell=True,
    stdin=subprocess.PIPE,
    stdout=subprocess.PIPE
)
process.communicate()
for i in cmd_input.split("\n"):
    process.communicate(i + "\n")

Or:

process = subprocess.Popen(
    "adb shell",
    shell=True,
    stdin=subprocess.PIPE,
    stdout=subprocess.PIPE
)
process.communicate(user + "\n")
process.communicate(pwd + "\n")
process.communicate(cmd + "\n")

Another option is to use google/python-adb or adb via pip

edited Feb 9, 2017 at 11:23

answered Feb 9, 2017 at 7:55

CodenameLambda

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7 Comments

wicked_snail Over a year ago

Just to clarify, comments in <..> are only for representation of what I do manually. I tried cmd_input = "root test date" and then subprocess.call("adb shell", shell=True, input=cmd_input). But I am getting this error Traceback (most recent call last): File "subprocess_login.py", line 4, in <module> subprocess.call("adb shell", shell=True, input=cmd_input) File "C:\Python27\lib\subprocess.py", line 524, in call return Popen(*popenargs, **kwargs).wait() TypeError: __init__() got an unexpected keyword argument 'input'

CodenameLambda Over a year ago

@wicked_snail I know, I just copied them over. input is my error, I looked at the Python3 documentation.

wicked_snail Over a year ago

I tried user = "root" pwd = "test" cmd = "date" . On executing subprocess.Popen("adb shell", shell=True).communicate("{}\n{}\n{}\n".format(user,pwd,cmd)), I get C:\Project\MMC\python>python subprocess_login.py mdm9607 login: So it is asking to enter the credentials manually. But I want it to login and execute the command from the script.

wicked_snail Over a year ago

I tried the second option, but it hangs after execution. After 60 seconds, it exits from execution. Probably because the login timeout is 60 seconds. If I quit in middle , it gives: File "C:\Python27\lib\subprocess.py", line 1033, in _communicate stdout_thread.join() File "C:\Python27\lib\threading.py", line 947, in join self.__block.wait() File "C:\Python27\lib\threading.py", line 339, in wait waiter.acquire() KeyboardInterrupt

wicked_snail Over a year ago

I printed the stdout : 'root\r\r\ntest\r\r\ndate\r\r\nmdm9607 login: \r\r\nLogin timed out after 60 seconds.\r\r\n'

|

Nafeez Quraishi · Accepted Answer · 2018-11-07 11:13:31Z

0

I was getting below error with process.communicate('command_to_send\n')

TypeError: a bytes-like object is required, not 'str'

Using the subprocess communicate command in below way resolved the TypeError:

process.communicate(b'input keyevent KEYCODE_CALL\n')

answered Nov 7, 2018 at 11:13

Nafeez Quraishi

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1 Comment

CodenameLambda Over a year ago

Please keep in mind that this does only work for Python3, Python2 handles everything as a bytestring (instead of a unicode one) by default.

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