Python and files.

Open file for reading

f = open ("myfile.txt", "r")
if f.mode == "r":
    data = f.read() ## read the whole file
    line = f.readline() ## read a line

Open file for writing, the regular way

f = open ("myfile.txt", "w")
for i in range (10):
    f.write ( i, "line" )

# append more lines
f = open ("myfile.txt", "a")
f.write ("That's all")
f.close()

Be a pythonist!

data = open ("myfile.txt").read()      ## return whole file as one single string
data = open ("myfile.txt").readline()  ## return one line as a string
data = open ("myfile.txt").readlines() ## return whole file as list of strings, with '\n'

f = "myfile.txt"
with open( f ) as fh:
    lines = list( map( str.rstrip, fh.readlines() ))