Hi ironpython,
Here's your Daily Digest of new issues for project "IronPython".
In today's digest:ISSUES
1. [New comment] struct doesn't support format string of type bytes
2. [New comment] Quoted IRONPYTHONPATH causes error with "import"
3. [New comment] Quoted IRONPYTHONPATH causes error with "import"
4. [New comment] System.Decimal string.format issue
5. [New issue] io.StringIO always closed
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ISSUES
1. [New comment] struct doesn't support format string of type bytes
http://ironpython.codeplex.com/workitem/34682
User jbester1 has commented on the issue:
"<p>Can do - updated IAW
comments</p><p>https://github.com/jbester/main/compare/IronLanguages:master...master</p><p></p>"-----------------
2. [New comment] Quoted IRONPYTHONPATH causes error with "import"
http://ironpython.codeplex.com/workitem/34687
User peterSchwalm has commented on the issue:
"<p>Hello,<br>I am not sure if this is really a bug. IMHO quotes are only
syntactic matter of the windows command line interpreter. They are used in
.cmd- / .bat-files ore interactively and they serve as protection against
splitting filenames containing spaces on a command line into multiple
arguments. Normally command lines are splitted into arguments at space
characters.</p><p>A program or script called by the command line</p><p>
c:>progName my text.txt</p><p>would find ['progName', 'my', 'text.txt'] in
sys.argv (or in how ever that would be named in a non-python
language).</p><p>Surrounding the filename (my text.txt) with quotes as
in</p><p> c:>progName "my text.txt"</p><p>simply prevents
splitting between 'my' and 'text.txt'. So sys.argv would contain ['progName',
'my text.txt']. So during parsing the command line the quotes disappear and
sys.argv will NOT contain ['progName', '"my text.txt"']</p><p>That
means the filename itself and the internal presentation in the program does not
contain the quotes.</p><p>The problem with the SET-command in cmd.exe is: the
command line is not parsed as usually. Instead the<br>environment variable
contains the rest of the line (except file redirection options). So
after</p><p> c:>set x=a b c</p><p>the environment variable x contains 'a
b c' and the protection against splitting is not necessary.</p><p>So I think
the better solution would be: do not use quotes when assigning filenames to
environment variables by the SET-command.</p><p>To strip already existing
quotes from filenames in batch-files one can use the construct '%~0', '%~1' ...
for batchparameters or '%%~f' in for loops. Unfortunately this does not work
for environment variables. But one can misuse one-time-for-loops for this
purpose.</p><p>For example after in a .bat-file</p><p> set x="a b
c"</p><p>x contains '"a b c"'</p><p>To strip off the quotes one
can write:</p><p> for %%f in (%x%) set x=%%~f</p><p></p><p>
</p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p><br></p>"-----------------
3. [New comment] Quoted IRONPYTHONPATH causes error with "import"
http://ironpython.codeplex.com/workitem/34687
User peterSchwalm has commented on the issue:
"<p>In my last comment I accidently "saved" to early.</p><p>The
batch-file snippet is:</p><p> set x="a b c"<br> set x<br>
rem x is '"a b c"'<br> rem remove quotes<br> for %%f in (%x%)
do set x=%%~f<br> set x<br> rem x is 'a b c' now.</p><p>Sometimes
cumbersome to handle. But I would prefer that to handling these batch-file
oddities in ironPython. </p><p>Peter<br></p>"-----------------
4. [New comment] System.Decimal string.format issue
http://ironpython.codeplex.com/workitem/34710
User vernondcole has commented on the issue:
"<p>Given that 'string'.format() is a function from the Python standard
library, I would say that the chance of getting the worldwide Python community
to embrace the extension you suggest for a foreign (dotNet) data type is
practically nil -- especially since the option, converting to decimal.Decimal
is both easy, and specially supported by the IronPython runtime for exactly
this kind of situation. Conversion to Double could loose precision, direct
conversion will not.</p><p>>>> from System import Decimal as
SystemDecimal<br>>>> import decimal<br>>>> sd =
SystemDecimal(1234567)<br>>>> thousand =
SystemDecimal(1000)<br>>>> fract = sd / thousand<br>>>> dd =
decimal.Decimal(fract)<br>>>>
print('{:,.2f}'.format(dd))<br>1,234.57<br>>>></p><p>Works just
exactly like you want.<br></p>"-----------------
5. [New issue] io.StringIO always closed
http://ironpython.codeplex.com/workitem/34713
User paweljasinski has proposed the issue:
"c:\cygwin64\home\rejap>ipy
IronPython 2.7.4 (2.7.0.40) on .NET 4.0.30319.18052 (32-bit)
Type "help", "copyright", "credits" or "license" for more information.
>>> from io import StringIO
>>> s=StringIO()
>>> s.write('1')
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ValueError: write to closed file
>>> s=StringIO('1')
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ValueError: write to closed file
>>>
"
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