Python i++

i += 1

Source: tutorialspoint.com

Python increment

# A Sample Python program to show loop (unlike many 
# other languages, it doesn't use ++) 
# this is for increment operator here start = 1,  
# stop = 5 and step = 1(by default) 
print("INCREMENTED FOR LOOP") 
for i in range(0, 5): 
   print(i) 
  
# this is for increment operator here start = 5,  
# stop = -1 and step = -1  
print("\n DECREMENTED FOR LOOP") 
for i in range(4, -1, -1): 
   print(i)

+= python

In [1]: x = [2, 3, 4]    
In [2]: y = x    
In [3]: x += 7, 8, 9    
In [4]: x
Out[4]: [2, 3, 4, 7, 8, 9]    
In [5]: y
Out[5]: [2, 3, 4, 7, 8, 9]    
In [6]: x += [44, 55]    
In [7]: x
Out[7]: [2, 3, 4, 7, 8, 9, 44, 55]    
In [8]: y
Out[8]: [2, 3, 4, 7, 8, 9, 44, 55]    
In [9]: x = x + [33, 22]    
In [10]: x
Out[10]: [2, 3, 4, 7, 8, 9, 44, 55, 33, 22]    
In [11]: y
Out[11]: [2, 3, 4, 7, 8, 9, 44, 55]

-2

Source: stackoverflow.com

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