How to convert numbers to words without using num2word library

Question

I need to turn numbers from 1 - 99 into words  This is what I got so far  num2words1    1   One   2   Two   3   Three   4   Four   5   Five                 6   Six   7   Seven   8   Eight   9   Nine   10   Ten                 11   Eleven   12   Twelve   13   Thirteen   14   Fourteen                 15   Fifteen   16   Sixteen   17   Seventeen   18   Eighteen   19   Nineteen   num2words2     Twenty    Thirty    Forty    Fifty    Sixty    Seventy    Eighty    Ninety    def number Number        if  Number  gt  1  or  Number  lt  19           return  num2words1 Number       elif  Number  gt  20  or  Number  lt  99           return  num2words2 Number       else          print  quot Number Out Of Range quot           main    def main        num   eval input  quot Please enter a number between 0 and 99   quot        number num  main    Now  the BIGGEST problem that I have so far is that the if  elif and else statements DO NOT seem to work  Only the first if statement runs  The second problem is creating the string version of the numbers from 20-99     P S  Yes  I know about the num2word library  but I am not allowed to use it

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import math  number   int input  Enter number to print       number list     zero   one   two   three   four   five   six   seven   eight   nine   teen list     ten   eleven   twelve   thirteen   fourteen   fifteen   sixteen   seventeen   eighteen   nineteen   decades list    twenty   thirty   forty   fifty   sixty   seventy   eighty   ninety     if number  lt   9      print number list number  capitalize    elif number  gt   10 and number  lt   19      tens   number   10     print teen list tens  capitalize    elif number  gt  19 and number  lt   99      ones   math floor number 10      twos   ones - 2     tens   number   10     if tens    0          print decades list twos  capitalize        elif tens    0          print decades list twos  capitalize           number list tens

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recursively    num2words    1   One   2   Two   3   Three   4   Four   5   Five                 6   Six   7   Seven   8   Eight   9   Nine   10   Ten                 11   Eleven   12   Twelve   13   Thirteen   14   Fourteen                 15   Fifteen   16   Sixteen   17   Seventeen   18   Eighteen   19   Nineteen   num2words2     Twenty    Thirty    Forty    Fifty    Sixty    Seventy    Eighty    Ninety   def spell num       if num    0          return        if num  lt  20          return  num2words num       elif num  lt  100          ray   divmod num 10          return  num2words2 ray 0 -2      spell ray 1        elif num  lt 1000          ray   divmod num 100          if ray 1     0              mid     hundred          else              mid    hundred and           return num2words ray 0   mid spell ray 1

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Your first statement logic is incorrect  Unless Number is 1 or smaller  that statement is always True  200 is greater than 1 as well   Use and instead  and include 1 in the acceptable values   if  Number  gt   1  and  Number  lt   19     You could use chaining as well   if 1  lt   Number  lt   19    For numbers of 20 or larger  use divmod   to get both the number of tens and the remainder   tens  remainder   divmod Number  10    Demo    gt  gt  gt  divmod 42  10   4  2    then use those values to build your number from the parts   return num2words2 tens - 2     -    num2words1 below ten    Don t forget to account for cases when the number is above 20 and doesn t have a remainder from the divmod operation   return num2words2 tens - 2     -    num2words1 remainder  if remainder else num2words2 tens - 2    All put together   def number Number       if 0  lt   Number  lt   19          return num2words1 Number      elif 20  lt   Number  lt   99          tens  remainder   divmod Number  10          return num2words2 tens - 2     -    num2words1 remainder  if remainder else num2words2 tens - 2      else          print  Number out of implemented range of numbers

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code 2 and 3   ones         0      1   one   2   two   3   three   4   four   5   five   6   six       7   seven   8   eight   9   nine   10   ten   11   eleven   12   twelve       13   thirteen   14   fourteen   15   fifteen   16   sixteen       17   seventeen   18   eighteen   19   nineteen   tens         2   twenty   3   thirty   4   forty   5   fifty   6   sixty       7   seventy   8   eighty   9   ninety   illions         1   thousand   2   million   3   billion   4   trillion   5   quadrillion       6   quintillion   7   sextillion   8   septillion   9   octillion       10   nonillion   11   decillion      def say number i               Convert an integer in to it s word representation       say number i  integer  - gt  string             if i  lt  0          return  join  negative    say number pos -i       if i    0          return  zero      return  say number pos i    def  say number pos i       if i  lt  20          return ones i      if i  lt  100          return  join tens i    10   ones i   10       if i  lt  1000          return  divide i  100   hundred       for illions number  illions name in illions items            if i  lt  1000   illions number   1               break     return  divide i  1000  illions number  illions name    def  divide dividend  divisor  magnitude       return  join           say number pos dividend    divisor           magnitude           say number pos dividend   divisor           def  join  args       return     join filter bool  args     test   def test say number data  expected output          Test cases for say number i          output   say number data      assert output    expected output              n    for          n    expected     n    got           format              data  expected output  output    test say number 0   zero   test say number 1   one   test say number -1   negative one   test say number 10   ten   test say number 11   eleven   test say number 99   ninety nine   test say number 100   one hundred   test say number 111   one hundred eleven   test say number 999   nine hundred ninety nine   test say number 1119   one thousand one hundred nineteen   test say number 999999                   nine hundred ninety nine thousand nine hundred ninety nine   test say number 9876543210                   nine billion eight hundred seventy six million                    five hundred forty three thousand two hundred ten   test say number 1000  1   one thousand   test say number 1000  2   one million   test say number 1000  3   one billion   test say number 1000  4   one trillion   test say number 1000  5   one quadrillion   test say number 1000  6   one quintillion   test say number 1000  7   one sextillion   test say number 1000  8   one septillion   test say number 1000  9   one octillion   test say number 1000  10   one nonillion   test say number 1000  11   one decillion   test say number 1000  12   one thousand decillion   test say number      1-1000  12       negative nine hundred ninety nine decillion nine hundred ninety nine        nonillion nine hundred ninety nine octillion nine hundred ninety nine        septillion nine hundred ninety nine sextillion nine hundred ninety nine        quintillion nine hundred ninety nine quadrillion nine hundred ninety        nine trillion nine hundred ninety nine billion nine hundred ninety nine        million nine hundred ninety nine thousand nine hundred ninety nine

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Convert numbers to words   Here is an example in which numbers have been converted into words using the dictionary  string   input  quot Enter a string   quot   my dict     0    zero    1    one    2    two    3    three    4    four    5    five    6    six    7    seven    8    eight    9    nine   for item in string    if item in my dict keys        string   string replace item  my dict item   print string

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I ve been also converting numbers to words for some fuzzy matching routines  I used a library called inflect I forked off pwdyson which worked awesome   https   github com pwdyson inflect py

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number input  number       numls20   1   one   2   two   3   three   4   four   5   five   6   six   7   seven   8   eight   9   nine   10   ten   11   elevn   12   twelve   13   thirteen   14   fourteen   15   fifteen   16   sixteen   17   seventeen   18   eighteen   19   ninteen       numls100   1   ten   2   twenty   3   thrity   4   fourty   5   fifty   6   sixty   7   seventy   8   eighty   9   ninty       numls1000   1   hundred   2   twohundred   3   threehundred   4   fourhundred   5   fivehundred   6   sixhundred   7   sevenhundred   8   eighthundred   9   ninehundred           def num2str number           if  int number  lt 20               print numls20 number           elif int number  lt 100               print numls100 number 0       numls20 number 1            elif int number  lt 1000               if   int number   100    0                   print numls1000 number 0                else                  print numls1000 number 0     and   numls100 number 1       numls20 number 2            elif int number  lt 10000               if   int number   1000    0                   print numls20 number 0     thousand               elif int number  100    0                   print numls20 number 0     thousand   numls1000 number 1                elif int number  10    0                   print numls20 number 0     thousand   numls1000 number 1     and   numls100 number 2                else                  print numls20 number 0     thousand   numls1000 number 1     and   numls100 number 2       numls20 number 3        num2str number

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single digit    0   zero   1   one   2   two   3   three   4   four                5   five   6   six   7   seven   8   eight               9   nine    teen    10   ten   11   eleven   12   twelve   13   thirteen            14   fourteen   15   fifteen   16   sixteen           17   seventeen   18   eighteen   19   nineteen    tens    20   twenty   30   thirty   40   forty   50   fifty   60   sixty            70   seventy   80   eighty   90   ninety    def spell single digit digit       if 0  lt   digit  lt  10          return single digit digit   def spell two digits number       if 10  lt   number  lt  20          return teen number       if 20  lt   number  lt  100          div    number    10    10         mod   number   10         if mod    0              return tens div     quot - quot    spell single digit mod          else              return tens number   def spell three digits number       if 100  lt   number  lt  1000          div   number    100         mod   number   100         if mod    0              if mod  lt  10                  return spell single digit div     quot  hundred  quot                          spell single digit mod              elif mod  lt  100                  return spell single digit div     quot  hundred  quot                         spell two digits mod          else              return spell single digit div     quot  hundred quot   def spell number       if -1000000000  lt  number  lt  1000000000          if number    0              return spell single digit number          a    quot  quot          neg   False         if number  lt  0              neg   True             number    -1         loop   0         while number              mod   number   1000             if mod    0                  c   spell three digits mod  or spell two digits mod                        or spell single digit mod                  if loop    0                      a   c    quot   quot    a                 elif loop    1                      a   c    quot  thousand  quot    a                 elif loop    2                      a   c    quot  million  quot    a             number   number    1000             loop    1         if neg              return  quot negative  quot    a         return a

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Are you allowed to use other packages  This one works really well for me   Inflect  It is useful for natural language generation and has a method for turning numbers into english text   I installed it with      pip install inflect   Then in your Python session   gt  gt  gt  import inflect  gt  gt  gt  p   inflect engine    gt  gt  gt  p number to words 1234567   one million  two hundred and thirty-four thousand  five hundred and sixty-seven    gt  gt  gt  p number to words 22   twenty-two

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def nums to words string       string   int string    Convert the string to an integer     one ten   zero    one    two    three    four    five    six    seven         eight    nine       ten nineteen   ten    eleven    twelve    thirteen    fourteen         fifteen        sixteen    seventeen    eighteen    nineteen       twenty ninety            twenty    thirty    forty    fifty    sixty         seventy    eighty        ninety       temp str          if string    0    If the string given equals to 0         temp str    zero     Assign the word zero to the var temp str       Do the calculation to find each digit of the str given     first digit   string    1000     second digit    string   1000     100     third digit    string   100     10     fourth digit    string   10      if first digit  gt  0           temp str   temp str   one ten first digit      thousand         one ten first digit  gets you the number you need from one ten and you add thousand  since we re trying to convert to words ofc        You do the same for the rest        if second digit  gt  0          temp str   temp str   one ten second digit      hundred       if third digit  gt  1          temp str   temp str   twenty ninety third digit            if third digit    1          temp str   temp str   ten nineteen fourth digit            else          if fourth digit              temp str   temp str   one ten fourth digit            if temp str -1            If the last index is a space         temp str   temp str 0 -1    Slice it  return temp str    I hope you get the understanding of the code slightly better  If still not understood let me know so I can try to help as much as I can

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This Did the job for me Python 2 x   nums    1  One   2  Two   3  Three   4  Four   5  Five   6  Six   7  Seven   8  Eight            9  Nine   0  Zero   10  Ten   11  Eleven   12  Tweleve    13  Thirteen   14  Fourteen             15   Fifteen   16  Sixteen   17  Seventeen   18  Eighteen   19  Nineteen   20  Twenty   30  Thirty   40  Forty   50  Fifty            60  Sixty   70  Seventy   80  Eighty   90  Ninety   num   input  Enter a number       To convert three digit number into words  if 100  lt   num  lt  1000      a   num   100     b   num   100     c   b   10     d   b   10     if c    1           print nums a     hundred    nums b      elif c    0          print nums a     hundred    nums d      else          c    10         if d    0              print nums a     hundred   nums c          else              print nums a     hundred    nums c   nums d    to convert two digit number into words             elif 0  lt   num  lt  100      a   num   10     b   num   10     if a    1          print nums num      else          a    10         print nums a   nums b

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def giveText num       pairs  1  one  2  two  3  three  4  four  5  five  6  six  7  seven  8  eight  9  nine  10  ten       11  eleven  12  twelve  13  thirteen  14  fourteen  15  fifteen  16  sixteen  17  seventeen  18  eighteen  19  nineteen  20  twenty       30  thirty  40  fourty  50  fifty  60  sixty  70  seventy  80  eighty  90  ninety  0       this and above 2 lines are actually single line     return pairs num   def toText num unit       n int num   this line can be removed     ans        if n  lt  20          ans  giveText n      else          ans  giveText n- n 10       giveText  n 10       ans ans strip       if len ans  gt 0          return     ans     unit     else          return      num  99 99 99 999   use raw input   num num replace          to remove     try      num str int num     to check valid number except      print  Invalid      exit    while len num  lt 9    i want fix length so no need to check it again     num  0  num  ans toText  num 0 2   Crore   toText num 2 4   Lakh   toText num 4 6   Thousand   toText num 6 7   Hundred   toText num 7 9      print ans strip

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if Number  gt  19 and Number  lt  99      textNumber   str Number      firstDigit  secondDigit   textNumber     firstWord   num2words2 int firstDigit       secondWord   num2words1 int secondDigit       word   firstWord   secondWord  if Number  lt 20 and Number  gt  0      word   num2words1 Number  if Number  gt  99      error

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Use python library called  num2words Link -  HERE

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You can do this program in this way  The range is in between 0 to 99 999 def num to word num       word num      quot 0 quot    quot zero quot    quot 00 quot    quot  quot    quot 1 quot     quot One quot     quot 2 quot     quot Two quot    quot 3 quot     quot Three quot    quot 4 quot     quot Four quot    quot 5 quot     quot Five quot   quot 6 quot     quot Six quot    quot 7 quot    quot Seven quot    quot 8 quot     quot eight quot    quot 9 quot     quot Nine quot   quot 01 quot     quot One quot     quot 02 quot     quot Two quot    quot 03 quot     quot Three quot    quot 04 quot     quot Four quot    quot 05 quot     quot Five quot   quot 06 quot     quot Six quot    quot 07 quot    quot Seven quot    quot 08 quot     quot eight quot    quot 09 quot     quot Nine quot    quot 10 quot     quot Ten quot    quot 11 quot    quot Eleven quot    quot 12 quot    quot Twelve quot    quot 13 quot     quot Thirteen quot    quot 14 quot     quot Fourteen quot    quot 15 quot     quot Fifteen quot    quot 17 quot   quot Seventeen quot    quot 18 quot    quot Eighteen quot    quot 19 quot    quot Nineteen quot    quot 20 quot     quot Twenty quot    quot 30 quot     quot Thirty quot    quot 40 quot     quot Forty quot    quot 50 quot     quot Fifty quot    quot 60 quot     quot Sixty quot    quot 70 quot    quot seventy quot    quot 80 quot     quot eighty quot    quot 90 quot     quot ninety quot       keys          for k in word num keys            keys append k       if len num     1          return word num num 0        elif len num     2          c   0         for k in keys              if k    num 0    num 1                   c    1         if c    1              return word num num 0    num 1            else              return word num str int num 0     10      quot   quot    word num num 1        elif len num     3          c   0         for k in keys              if k    num 1    num 2                   c    1         if c    1              return word num num 0     quot  Hundred  quot    word num num 1    num 2            else              return word num num 0     quot  Hundred  quot    word num str int num 1     10      quot   quot    word num num 2        elif len num     4          c   0         for k in keys              if k    num 2    num 3                   c    1         if c    1              if num 1      0                    return word num num 0     quot  Thousand  quot    word num num 2    num 3                else                  return word num num 0     quot  Thousand  quot    word num num 1     quot  Hundred  quot    word num num 2    num 3             else              if num 1      0                    return word num num 0     quot  Thousand  quot    word num str int num 2     10      quot   quot    word num num 3                else                  return word num num 0     quot  Thousand  quot    word num num 1     quot  Hundred  quot    word num str int num 2     10      quot   quot    word num num 3        elif len num     5          c   0         d   0         for k in keys              if k    num 3    num 4                   c    1         for k in keys              if k    num 0    num 1                   d    1         if d    1              val   word num num 0    num 1            else              val   word num str int num 0     10      quot   quot    word num num 1            if c    1              if num 1      0                    return val    quot  Thousand  quot    word num num 3    num 4                else                  return val    quot  Thousand  quot    word num num 2     quot  Hundred  quot    word num num 3    num 4             else              if num 1      0                    return val    quot  Thousand  quot    word num str int num 3     10      quot   quot    word num num 4                else                  return val    quot  Thousand  quot    word num num 2     quot  Hundred  quot    word num str int num 3     10      quot   quot    word num num 4      num    str d  for d in input  quot Enter number   quot    print num to word num  upper

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I know that this is a very old post and I am probably very late to the party  but hopefully this will help someone else  This has worked for me   phone words   input  Phone     numbered words          0    zero        1    one        2    two        3    three        4    four        5    five        6    six        7    seven        8    eight        9    nine    output      for ch in phone words      output    numbered words get ch             phone words   numbered words  print output

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You can make this much simpler by using one dictionary and a try except clause like this   num2words    1   One   2   Two   3   Three   4   Four   5   Five                  6   Six   7   Seven   8   Eight   9   Nine   10   Ten                 11   Eleven   12   Twelve   13   Thirteen   14   Fourteen                 15   Fifteen   16   Sixteen   17   Seventeen   18   Eighteen                 19   Nineteen   20   Twenty   30   Thirty   40   Forty                 50   Fifty   60   Sixty   70   Seventy   80   Eighty                 90   Ninety   0   Zero     gt  gt  gt  def n2w n           try              print num2words n          except KeyError              try                  print num2words n-n 10    num2words n 10  lower               except KeyError                  print  Number out of range    gt  gt  gt  n2w 0  Zero  gt  gt  gt  n2w 13  Thirteen          gt  gt  gt  n2w 91  Ninetyone  gt  gt  gt  n2w 21  Twentyone  gt  gt  gt  n2w 33  Thirtythree

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num2words    1   One   2   Two   3   Three   4   Four   5   Five                    6   Six   7   Seven   8   Eight   9   Nine   10   Ten                   11   Eleven   12   Twelve   13   Thirteen   14   Fourteen                   15   Fifteen   16   Sixteen   17   Seventeen   18   Eighteen                   19   Nineteen   20   Twenty   30   Thirty   40   Forty                   50   Fifty   60   Sixty   70   Seventy   80   Eighty                   90   Ninety   0   Zero     def n2w n       try        return num2words n      except KeyError        try          return num2words n-n 10    num2words n 10  lower         except KeyError          try            if n gt  100 and n lt  999               w                w w str n2w int n 100     Hundred              n n- int n 100  100              if n gt 0                 w w  And  n2w n              return w               elif n gt  1000               w                w w n2w int n 1000    Thousand              n n-int  n 1000   1000             if n gt 0 and n lt 100                 w w  And  n2w n              if n gt  100                 w w n2w int n 100    Hundred                n n- int n 100  100                if n gt 0                   w w  And  n2w n              return w         except KeyError              return  Ayyao    for i in range 0 99999       print n2w i

User · Answer

Many people have answered this correctly but here is another way which actually not only covers 1-99 but it actually goes above any data range but it does not cover decimals   Note  this was tested using python 3 7  def convert num       units         one     two     three     four    five     six     seven    eight     nine     ten     eleven     twelve     thirteen     fourteen     fifteen    sixteen     seventeen     eighteen     nineteen        tens            twenty     thirty     forty     fifty    sixty    seventy    eighty    ninety         if num  lt  0          return  minus   convert -num       if num lt 20          return  units num        if num lt 100           return  tens num    10    units int num   10         if num lt 1000          return units num    100     hundred    convert int num   100        if num lt 1000000           return  convert num    1000     thousand     convert int num   1000        if num  lt  1000000000              return convert num    1000000     million     convert int num   1000000        return convert num    1000000000    billion    convert int num   1000000000     print convert 100001333

[python] How to convert numbers to words without using num2word library?

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