On 15/08/2020 08:01, Dennis Lee Bieber wrote:
On Fri, 14 Aug 2020 16:29:18 +1200, dn via Python-list
<python-list@python.org> declaimed the following:
it is ignored by Python. (yes, this discussion disdains comments!) For
example, whitespace is no problem when it comes to defining a list:
month_names = ['Januari', 'Februari', 'Maart', # These are the
'April', 'Mei', 'Juni', # Dutch names...
Concepts: First, you have an open [ though ( and { behave the same.
Python takes anything in intervening lines to be included until the closing
]/)/} is reached.
Exactly! (BTW this taken from 'the manual')
Second, for things like lists, the only important (parsed content) are
the "words" [in your example] separated by commas.
Agreed - and IMHO a positive attribute when coding in Python making a
solid contribution to readability.
Whitespace in Python controls /scope/ of logic structures (function
definition, loop bodies, conditional bodies).
Hence my surprise/how do we explain:
>>> f'{ one:03 }'
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ValueError: Unknown format code '\x20' for object of type 'int'
where the final space does not act as a separator by terminating the
format-specification. The err.msg is in itself confusing, because the
format-specification 03 is NOT a (valid) Python integer:
>>> i = 3
>>> i
3
>>> i = 03
File "<stdin>", line 1
i = 03
^
SyntaxError: leading zeros in decimal integer literals are not
permitted; use an 0o prefix for octal integers
Perhaps I'm mis-interpreting the err.msg?
Otherwise let's march on City Hall: "white space just wants to be free!"...
--
Regards =dn
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