Python 3.3.2 (v3.3.2:d047928ae3f6, May 16 2013, 00:06:53) [MSC v.1600 64 bit (AMD64)] on win32
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>>> ================================ RESTART ================================
>>> 
>>> convert_base(4,37)
Traceback (most recent call last):
  File "<pyshell#0>", line 1, in <module>
    convert_base(4,37)
  File "F:\convert_base_skeleton.py", line 7, in convert_base
    assert 2<=b<=36
AssertionError
>>> ================================ RESTART ================================
>>> 
>>> convert_base(22, 2)
'10110'
>>> convert_base(2, 2)
'10'
>>> convert_base(2956, 2)
'101110001100'
>>> bin(22)
'0b10110'
>>> hex(22)
'0x16'
>>> hex(25)
'0x19'
>>> hex(31)
'0x1f'
>>> ================================ RESTART ================================
>>> 
>>> convert_base(0, 2)
''
>>> ================================ RESTART ================================
>>> 
>>> convert_base(0, 2)
'0'
>>> "0123456789abcdef"[0]
'0'
>>> "0123456789abcdef"[1]
'1'
>>> "0123456789abcdef"[11]
'b'
>>> ================================ RESTART ================================
>>> 
>>> ================================ RESTART ================================
>>> 
>>> convert_base(22, 16)
'16'
>>> convert_base(10, 16)
'a'
>>> convert_base(16, 16)
'10'
>>> int("a")
Traceback (most recent call last):
  File "<pyshell#16>", line 1, in <module>
    int("a")
ValueError: invalid literal for int() with base 10: 'a'
>>> int("a", 16)
10
>>> int("10110", 2)
22
>>> int(10110, 2)
Traceback (most recent call last):
  File "<pyshell#19>", line 1, in <module>
    int(10110, 2)
TypeError: int() can't convert non-string with explicit base
>>> int(0b10110, 2)
Traceback (most recent call last):
  File "<pyshell#20>", line 1, in <module>
    int(0b10110, 2)
TypeError: int() can't convert non-string with explicit base
>>> int(0b10110)
22
>>> def change_int(n):
	n = 999

	
>>> n = 1
>>> n
1
>>> change_int(n)
>>> n
1
>>> change_list(L):
	
SyntaxError: invalid syntax
>>> def change_list(L):
	L.append(999)

	
>>> lst = [1,2,3]
>>> change_list(lst)
>>> lst
[1, 2, 3, 999]
>>> def change_list2(L):
	L = [999,999]

	
>>> L
Traceback (most recent call last):
  File "<pyshell#38>", line 1, in <module>
    L
NameError: name 'L' is not defined
>>> lst
[1, 2, 3, 999]
>>> change_list2(lst)
>>> lst
[1, 2, 3, 999]

>>>