Format numbers in django templates

Question

I m trying to format numbers  Examples   1       gt  1 12      gt  12 123     gt  123 1234    gt  1 234 12345   gt  12 345   It strikes as a fairly common thing to do but I can t figure out which filter I m supposed to use   Edit  If you ve a generic Python way to do this  I m happy adding a formatted field in my model

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Well I couldn t find a Django way  but I did find a python way from inside my model   def format price self       import locale     locale setlocale locale LC ALL          return locale format   d   self price  True

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Building on other answers  to extend this to floats  you can do      load humanize       floatvalue floatformat 2 intcomma      Documentation  floatformat  intcomma

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The humanize solution is fine if your website is in English   For other languages  you need another solution  I recommend using Babel   One solution is to create a custom template tag to display numbers properly   Here s how  just create the following file in your project your app templatetags sexify py     - - coding  utf-8 - - from django import template from django utils translation import to locale  get language from babel numbers import format number  register   template Library    def sexy number context  number  locale   None       if locale is None          locale   to locale get language        return format number number  locale   locale   register simple tag takes context True  sexy number    Then you can use this template tag in your templates like this      load sexy number from sexify        sexy number 1234 56       For an american user  locale en US  this displays 1 234 56  For a french user  locale fr FR   this displays 1 234 56        Of course you can use variables instead      sexy number some variable      Note  the context parameter is currently not used in my example  but I put it there to show that you can easily tweak this template tag to make it use anything that s in the template context

User · Answer

Try adding the following line in settings py   USE THOUSAND SEPARATOR   True   This should work   Refer to documentation     update at 2018-04-16   There is also a python way to do this thing    gt  gt  gt         format 1000000   1 000 000

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Based on muhuk answer I did this simple tag encapsulating python string format method    Create a templatetags at your s application folder   Create a format py file on it  Add this to it   from django import template  register   template Library     register filter name  format   def format value  fmt       return fmt format value   Load it in your template    load format    Use it     some value format    0 2f

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The humanize app offers a nice and a quick way of formatting a number but if you need to use a separator different from the comma  it s simple to just reuse the code from the humanize app  replace the separator char  and create a custom filter  For example  use space as a separator    register filter  intspace   def intspace value               Converts an integer to a string containing spaces every three digits      For example  3000 becomes  3 000  and 45000 becomes  45 000       See django contrib humanize app             orig   force unicode value      new   re sub    -  d    d 3       g lt 1 gt   g lt 2 gt    orig      if orig    new          return new     else          return intspace new

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If you don t want to get involved with locales here is a function that formats numbers   def int format value  decimal points 3  seperator u          value   str value      if len value   lt   decimal points          return value       say here we have value    12345  and the default params above     parts          while value          parts append value -decimal points            value   value  -decimal points        now we should have parts     345    12       parts reverse         and the return value should be u 12 345      return seperator join parts    Creating a custom template filter from this function is trivial

User · Answer

If you don t want to get involved with locales here is a function that formats numbers   def int format value  decimal points 3  seperator u          value   str value      if len value   lt   decimal points          return value       say here we have value    12345  and the default params above     parts          while value          parts append value -decimal points            value   value  -decimal points        now we should have parts     345    12       parts reverse         and the return value should be u 12 345      return seperator join parts    Creating a custom template filter from this function is trivial

User · Answer

Well I couldn t find a Django way  but I did find a python way from inside my model   def format price self       import locale     locale setlocale locale LC ALL          return locale format   d   self price  True

User · Answer

Building on other answers  to extend this to floats  you can do      load humanize       floatvalue floatformat 2 intcomma      Documentation  floatformat  intcomma

User · Answer

Be aware that changing locale is process-wide and not thread safe  iow   can have side effects or can affect other code executed within the same process    My proposition  check out the Babel package  Some means of integrating with Django templates are available

User · Answer

Not sure why this has not been mentioned  yet      load l10n        value localize      https   docs djangoproject com en 1 11 topics i18n formatting  std templatefilter-localize  You can also use this in your Django code  outside templates  by calling localize number

User · Answer

Well I couldn t find a Django way  but I did find a python way from inside my model   def format price self       import locale     locale setlocale locale LC ALL          return locale format   d   self price  True

User · Answer

Be aware that changing locale is process-wide and not thread safe  iow   can have side effects or can affect other code executed within the same process    My proposition  check out the Babel package  Some means of integrating with Django templates are available

User · Answer

Regarding Ned Batchelder s solution  here it is with 2 decimal points and a dollar sign  This goes somewhere like my app templatetags my filters py  from django import template from django contrib humanize templatetags humanize import intcomma  register   template Library    def currency dollars       dollars   round float dollars   2      return    s s     intcomma int dollars       0 2f    dollars  -3     register filter  currency   currency    Then you can     load my filters      my dollars   currency

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Slightly off topic   I found this question while looking for a way to format a number as currency  like so    100   50     negative numbers without  -  and in parens   I ended up doing      if   var  gt   0        var stringformat  d        elif var  lt   0         var stringformat  d  cut  -         endif      You could also do  e g     var stringformat  1 2f  cut  -     to display as  50 00  with 2 decimal places if that s what you want   Perhaps slightly on the hacky side  but maybe someone else will find it useful

User · Answer

Be aware that changing locale is process-wide and not thread safe  iow   can have side effects or can affect other code executed within the same process    My proposition  check out the Babel package  Some means of integrating with Django templates are available

User · Answer

Be aware that changing locale is process-wide and not thread safe  iow   can have side effects or can affect other code executed within the same process    My proposition  check out the Babel package  Some means of integrating with Django templates are available

User · Answer

Slightly off topic   I found this question while looking for a way to format a number as currency  like so    100   50     negative numbers without  -  and in parens   I ended up doing      if   var  gt   0        var stringformat  d        elif var  lt   0         var stringformat  d  cut  -         endif      You could also do  e g     var stringformat  1 2f  cut  -     to display as  50 00  with 2 decimal places if that s what you want   Perhaps slightly on the hacky side  but maybe someone else will find it useful

User · Answer

Well I couldn t find a Django way  but I did find a python way from inside my model   def format price self       import locale     locale setlocale locale LC ALL          return locale format   d   self price  True

User · Answer

In case someone stumbles upon this  in Django 2 0 2 you can use this  Thousand separator  Be sure to read format localization as well

User · Answer

Based on muhuk answer I did this simple tag encapsulating python string format method    Create a templatetags at your s application folder   Create a format py file on it  Add this to it   from django import template  register   template Library     register filter name  format   def format value  fmt       return fmt format value   Load it in your template    load format    Use it     some value format    0 2f

User · Answer

Django s contributed humanize application does this      load humanize       my num intcomma      Be sure to add  django contrib humanize  to your INSTALLED APPS list in the settings py file

User · Answer

Regarding Ned Batchelder s solution  here it is with 2 decimal points and a dollar sign  This goes somewhere like my app templatetags my filters py  from django import template from django contrib humanize templatetags humanize import intcomma  register   template Library    def currency dollars       dollars   round float dollars   2      return    s s     intcomma int dollars       0 2f    dollars  -3     register filter  currency   currency    Then you can     load my filters      my dollars   currency

User · Answer

Django s contributed humanize application does this      load humanize       my num intcomma      Be sure to add  django contrib humanize  to your INSTALLED APPS list in the settings py file

User · Answer

Django s contributed humanize application does this      load humanize       my num intcomma      Be sure to add  django contrib humanize  to your INSTALLED APPS list in the settings py file

User · Answer

In case someone stumbles upon this  in Django 2 0 2 you can use this  Thousand separator  Be sure to read format localization as well

User · Answer

Try adding the following line in settings py   USE THOUSAND SEPARATOR   True   This should work   Refer to documentation     update at 2018-04-16   There is also a python way to do this thing    gt  gt  gt         format 1000000   1 000 000

User · Answer

Not sure why this has not been mentioned  yet      load l10n        value localize      https   docs djangoproject com en 1 11 topics i18n formatting  std templatefilter-localize  You can also use this in your Django code  outside templates  by calling localize number

User · Answer

Django s contributed humanize application does this      load humanize       my num intcomma      Be sure to add  django contrib humanize  to your INSTALLED APPS list in the settings py file

User · Answer

The humanize app offers a nice and a quick way of formatting a number but if you need to use a separator different from the comma  it s simple to just reuse the code from the humanize app  replace the separator char  and create a custom filter  For example  use space as a separator    register filter  intspace   def intspace value               Converts an integer to a string containing spaces every three digits      For example  3000 becomes  3 000  and 45000 becomes  45 000       See django contrib humanize app             orig   force unicode value      new   re sub    -  d    d 3       g lt 1 gt   g lt 2 gt    orig      if orig    new          return new     else          return intspace new

User · Answer

If you don t want to get involved with locales here is a function that formats numbers   def int format value  decimal points 3  seperator u          value   str value      if len value   lt   decimal points          return value       say here we have value    12345  and the default params above     parts          while value          parts append value -decimal points            value   value  -decimal points        now we should have parts     345    12       parts reverse         and the return value should be u 12 345      return seperator join parts    Creating a custom template filter from this function is trivial

User · Answer

If you don t want to get involved with locales here is a function that formats numbers   def int format value  decimal points 3  seperator u          value   str value      if len value   lt   decimal points          return value       say here we have value    12345  and the default params above     parts          while value          parts append value -decimal points            value   value  -decimal points        now we should have parts     345    12       parts reverse         and the return value should be u 12 345      return seperator join parts    Creating a custom template filter from this function is trivial

User · Answer

The humanize solution is fine if your website is in English   For other languages  you need another solution  I recommend using Babel   One solution is to create a custom template tag to display numbers properly   Here s how  just create the following file in your project your app templatetags sexify py     - - coding  utf-8 - - from django import template from django utils translation import to locale  get language from babel numbers import format number  register   template Library    def sexy number context  number  locale   None       if locale is None          locale   to locale get language        return format number number  locale   locale   register simple tag takes context True  sexy number    Then you can use this template tag in your templates like this      load sexy number from sexify        sexy number 1234 56       For an american user  locale en US  this displays 1 234 56  For a french user  locale fr FR   this displays 1 234 56        Of course you can use variables instead      sexy number some variable      Note  the context parameter is currently not used in my example  but I put it there to show that you can easily tweak this template tag to make it use anything that s in the template context

[python] Format numbers in django templates

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