csv - howto specify fmtparam parameters

Re: csv - howto specify fmtparam parameters

Seems that the docs are wrong. The following should work:

import csv
csv_file = file('test.csv' )

class MyDialect(csv.e xcel):
lineterminator = "\n"

dr = csv.DictReader( csv_file,['Matr','Name',' Vorname','PZ',' MP'],\
dialect=MyDiale ct)

for s in dr:
print s

Peter

Re: csv documentation error? (was Re: csv - howto specify fmtparam parameters)

Helmut Jarausch wrote:
[color=blue]
> still I am curious: is the documentation in error?[/color]

Taken directly from csv.py:

class DictReader:
def __init__(self, f, fieldnames, restkey=None, restval=None,
dialect="excel" , *args):
self.fieldnames = fieldnames # list of keys for the dict
self.restkey = restkey # key to catch long rows
self.restval = restval # default value for short rows
self.reader = reader(f, dialect, *args)

As there is no provision for keyword arguments in DictReader.__in it__() as
opposed to reader, it seems to be a bug that can be easily fixed:

class DictReader:
def __init__(self, f, fieldnames, restkey=None, restval=None,
dialect="excel" , *args, **kwd):
self.fieldnames = fieldnames # list of keys for the dict
self.restkey = restkey # key to catch long rows
self.restval = restval # default value for short rows
self.reader = reader(f, dialect, *args, **kwd)

Peter

Re: csv documentation error? (was Re: csv - howto specify fmtparam parameters)


"Peter Otten" <__peter__@web. de> wrote in message
news:bi26pd$dug [email protected]...[color=blue]
> Helmut Jarausch wrote:
>[color=green]
> > still I am curious: is the documentation in error?[/color]
>
> Taken directly from csv.py:
>
> class DictReader:
> def __init__(self, f, fieldnames, restkey=None, restval=None,
> dialect="excel" , *args):
> self.fieldnames = fieldnames # list of keys for the dict
> self.restkey = restkey # key to catch long rows
> self.restval = restval # default value for short rows
> self.reader = reader(f, dialect, *args)
>
> As there is no provision for keyword arguments in DictReader.__in it__() as
> opposed to reader, it seems to be a bug that can be easily fixed:
>
> class DictReader:
> def __init__(self, f, fieldnames, restkey=None, restval=None,
> dialect="excel" , *args, **kwd):
> self.fieldnames = fieldnames # list of keys for the dict
> self.restkey = restkey # key to catch long rows
> self.restval = restval # default value for short rows
> self.reader = reader(f, dialect, *args, **kwd)[/color]

Please file a bug report so this doesn't get lost.


Raymond Hettinger