1_begin

py = "python & python"

welcome = 'welcome'

# the way of string concat

print( 'concat: '+ py + ( ' is the most powerful language' ) )


# find the length

len = str( len( py ) )   # convert int to string

print( 'length: the length of python is: ' + len )

# get the characters

print( '0 to 5 elements are in python: ' + py[ 0 : 5 ] )

# or print( '0 to 5 elements are in python: ' + py[ : 5 ] )

# uppercase,lowercase

print( 'In uppercase: in uppercase python is: ' + py.upper() )

# find the number of words or chars

print( 'Count: there are: '+ str( py.count('python') ) + ' times' )

# replace

repl = py.replace('& python', '')
print( 'replace: ' + repl +  ' is the most powerful language' )
# more at code no. 56

#format

formatt = '{} to {}'.format(welcome,py)
print('format: ' + formatt)

# help

# print( help(str) )

# debug ctrl+F5