FileNotFoundError: [WinError 2] The system cannot find the file specified: '/mydir' code example

Example 1: python wifi moudel [WinError 2] The system cannot find the file specified

#Here it is
from wifi import Cell, Scheme
Cell.all('wlan0')
cell = Cell.all('wlan0')[0]
scheme = Scheme.for_cell('wlan0', 'home', cell, passkey)
scheme.save()
scheme.activate()

scheme = Scheme.find('wlan0', 'home')
scheme.activate()

Example 2: [WinError 2] The system cannot find the file specified

process = subprocess.Popen(command, stdout=tempFile, shell=True)
# make shell = True