Some python code

# ternary
a if condition else b  

# string comparision  
s1 == s2     

# id comparision  
a is b  # is the id(a) == id(b)  

# string find  
s.find('sample')  
for 'sample' in s  

# string replace
s.replace('old', 'new')
s.replace('old', 'new', 3)

# string concatenation  
''.join(lst)  #list = ['a', 'b', 'c']  

# for loop  
for letter in 'Python':  
   print 'Current Letter :', letter

# remove one list in another
l3 = [x for x in l1 if x not in l2]

# remove one list in another(if element are hashable)  
set(l1) - set(l2)