setup_wpa_enterprise.py TypeError: bufsize must be an integer

[afaideen]

debian@beaglebone:/var/lib/cloud9$ sudo python3 setup_wpa_enterprise.py
[sudo] password for debian:

Searching For SSID: tamulink-wpa
Scanning for more SSIDS
Traceback (most recent call last):
File "setup_wpa_enterprise.py", line 46, in
subprocess.call("connmanctl", " scan", " wifi") # Runs system command to scan for more ssids
File "/usr/lib/python3.7/subprocess.py", line 323, in call
with Popen(*popenargs, **kwargs) as p:
File "/usr/lib/python3.7/subprocess.py", line 677, in init
raise TypeError("bufsize must be an integer")
TypeError: bufsize must be an integer
debian@beaglebone:/var/lib/cloud9$