How to determine a variable's datatype?

[Alessandro Bottoni]

Peter,
I just asked the some question (and for the same reason: SQL).
See the "Types" module in the standard distribution documentation.
I hope this help.

--------------------------------
Alessandro Bottoni
(Alessandro.Bottoni at Think3.com)
(alessandro.bottoni at libero.it)
Web Programmer
Think3 inc.
(www.think3.com)


> -----Original Message-----
> From:	Peter Bittner [SMTP:bittneph at aston.ac.uk]
> Sent:	Wednesday, March 15, 2000 8:26 PM
> To:	python-list at python.org
> Subject:	How to determine a variable's datatype?
> Importance:	High
> 
> Hi there!
> 
> Is it possible in Python to determine the datatype of an object?
> 
> E.g. (kind of like this)
>      var1 = 3
>      var2 = 'Hello'
>      var1.datatype   ==> yields "int"
>      var2.datatype   ==> yields "string" or list of characters
> 
> This would be crucial for this function that I want to write in a module
> called 'sql':
> 
>  def insert(table_name, dict_of_tags_and_values):
>    " returns a SQL-string that inserts a new dataset in a table"
>    prefix   = 'INSERT INTO ' + str(table_name)
>    entities = ''
>    values   = ''
>    for dictpair in dict_of_tags_and_values
>      # - split this pair
>      # - if value != '' (-> strings!!!) or...
>      #      ... value != 0 (-> numbers/integers!!!):
>      #     add strings to entities and values with or without 's
>      #
>    return prefix + ' (' + entities + ') VALUES (' + values + ')'
> 
> For a number the value added must be plain, for a string the 'value'
> must be enclosed in '-characters.
> Hence this is crucial to this application!
> 
> Does someone know if it's possible to determine it?
> 
> Please mail me any suggestion!!  (-> mailto: bittneph at aston.ac.uk)
> Peter
> 
> | Peter H. Bittner
> | International Student at Aston University
> | e-mail: bittneph at aston.ac.uk
> | web: http://beam.to/bimbo
> +--------------------------
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