I was trying to print a simple number using this code: " print ("Test output %d" %

[dasazzad]

Hello there,

I was trying to print a simple number using this code:

" print ("Test output %d" % 050) "

but it is giving following output

" Test output 40 "

I need this explanation why it is showing this result.

In Fact I've tried with few more code and the respective output is given below with the code.. Please Help me with the explanation..

Sample 1:
print ("Test Output %d" % 0100)
Test Output 64

Sample 2:
print ("Test Output %d" % 060)
Test Output 48

Sample 3:
print ("Test Output %d" % 020)
Test Output 16

Sample 4:
print ("Test Output %d" % 010)
Test Output 8

Sample 5: (It actually provide error)
print ("Test Output %d" % 080)
output:
print ("Test Output %d" % 080)
^
SyntaxError: invalid token

[bvdet]

The integer "050" is in octal notation and represents the decimal integer "40". "080" is invalid because there is no "8" in octal.
Examples of octal, hexidecimal and binary numeric literals:

>>> 050
40
>>> 080
Traceback (  File "<interactive input>", line 1
    080
      ^
SyntaxError: invalid token
>>> 0x659def
6659567
>>> 0b1001100011010
4890
>>>

[dasazzad]

Thank you Mr. Bvdet that was helpful.