microPython tools: cat, copy & decat (a debug cat with line number)

install_cat_and_copy.py

import os

os.mkdir("lib")
os.chdir("lib")

f=open("decat.py","w")
f.write('''
import os

def decat(filename):
    i = 1
    with open(filename, 'rt') as f:
        for line in f.readlines():
            print('{num:02d}: '.format(num=i), end='')
            print(line, end='')
            i = i + 1
''')
f.close()

f=open("cat.py","w")
f.write('''
import os

def cat(filename):
    with open(filename, 'rt') as f:
        for line in f.readlines():
            print(line, end='')
''')
f.close()

f=open("copy.py","w")
f.write('''
import os

def copy(source, destination):
    f = open (source, 'r')
    g = open (destination, 'w')
    g.write(f.read())
    f.close()
    g.close()
''')
f.close()

Now working on adding a debug cat that print a line number in front of each line to detect where an error is located.