openfile (Read)

# read file of text
import os
handle = open(filename,'r+t') # r=read  t=textdatei
line = handle.readline().strip() # löscht 
zahl = float(line)
handle.close()


# read all lines
import os
handle = open(filename,'r+t') # r=read  t=textdatei
lines = handle.readlines()
handle.close()
for line in lines:
l=line.strip()