Python 2 7 d s and float

Question

I am attempting to teach myself a little coding through the  learn python the hard way  book and am struggling with  d    s    r when tying to display a floating point number   How do you properly pass a floating point number with a format character   First I tried  d but that made my answers display as integers     I had some success with  r  but I was under the assumption that was usually reserved for debugging   I figured out for division in python 2 x you have to manually float the denominator for it to properly work for some reason   Example code   def divide  a  b       print  WE DIVIDING  r and  r NOW     a  b      return a   float b  print  Input first number   first   float raw input   gt       print  OK  now input second number   second   float raw input   gt        ans   divide first  second  print  DONE   r DIVIDED BY  r EQUALS  r  SWEET MATH BRO      first  second  ans

User · Accepted Answer

Try the following   print  First is   f     first  print  Second is   f     second    I am unsure what answer is  But apart from that  this will be   print  DONE   f DIVIDED BY  f EQUALS  f  SWEET MATH BRO      first  second  ans    There s a lot of text on Format String Specifiers  You can google it and get a list of specifiers  One thing I forgot to note   If you try this   print  First is   s     first    It converts the float value in first to a string  So that would work as well

User · Answer

See String Formatting Operations    d is the format code for an integer    f is the format code for a float    s prints the str   of an object  What you see when you print object      r prints the repr   of an object  What you see when you print repr object     For a float  s   r and  f all display the same value  but that isn t the case for all objects   The other fields of a format specifier work differently as well    gt  gt  gt  print   10 2s    1 123    print as string  truncate to 2 characters in a 10-place field          1   gt  gt  gt  print   10 2f    1 123    print as float  round to 2 decimal places in a 10-place field        1 12

[python] Python 2.7: %d, %s, and float()

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