Learning Python: The Ultimate Guide for Beginners to Coding with Python with Useful Tools

Indentation and Lines
There  is  nothing  like  braces  to  indicate  a  block  of  code  for  function  and
class  in  Python.  Normally,  a  block  of  code  is  represented  by  a  line
indentation that gets enforced in a strong manner. Importantly, the spaces in
the indentation vary; however, every statement in the block must have the
same amount of indentation. For instance,
if False:
print "False"
else:
print "True"
However, the block of the statement below will generate an error

---

if False:
print "Result"
print "False"
else:
print "Result"
print "True"
Consequently,  all  continuous  lines  you  indent  using  the  same  number  of
spaces  will  for  a  block.  Let  us  use  another  example  to  show  various
statement blocks. I will advise you not to try to understand the logic of the
program.  However,  your  aim  is  to  understand  the  various  blocks
irrespective of their structure.
import sys
try:
# open file stream
file = open(fileName, "w")
except IOError:
print "Error when writing to", fileName
sys.exit()
print "Enter '", fileFinish,
print "' When finished"
while fileText != fileFinish:
fileText = real_input("Enter text you want: ")
if fileText == fileFinish:
# close the file
file.close

---

break
file.write(file_text)
file.write("\n")
file.close()
fileText = real_input("Enter filename: ")
if len(fileName) == 0:
print "Next time input something"
sys.exit()
try:
file = open(fileName, "r")
except IOError:
print "Error reading file requested"
sys.exit()
fileText = file.read()
file.close()
print fileText