On Fri, 22 Sep 2017 02:57 pm, Bill wrote:
> I find Python to be more more
> like Java, with regard to "passing objects by reference".
Which is not a surprise, since both Python and Java use the same value passing
style: pass by object reference, or pass by sharing if you prefer.
Java people don'
Steve D'Aprano writes:
> Having to spend a few hours being paid to migrate code using "print x"
> to "print(x)", or even a few months, is not a life-changing experience.
Didn't someone further up the thread mention some company that had spent
1.5 years porting a py2 codebase to py3?
The issue of
Stefan Ram wrote:
Bill writes:
"Essential Reference", and I would say that Python is definitely a
bigger, and more complicated language than C++. In some aspects it has
simpler syntax. But consider all of the ways that you can pass
arguments to a function, for instance. There are definitely a
On Fri, 22 Sep 2017 02:00 pm, Rick Johnson wrote:
> I think it's grossly unfair to label those who's lives
> have been up-ended by the backwards incompatible changes of
> Python3 as "haters".
Nobody, not one person, has ever had their life upended by Python 3.
People have their lives upended by
On Thursday, September 21, 2017 at 10:12:25 AM UTC-5, Steve D'Aprano wrote:
> [...]
> And remember that the Python core developers feel your pain
> too. They had to migrate a large code base (the Python std
> library) from 2 to 3. They had to write the 2to3
> translator. And they have to maintain t
Stefan Ram wrote:
Bill writes:
I understand string[::-1] after only studying python for a day or two
(I've only been studying it for 2 weeks at this point). A student could
study C++ for a semester or more and not encounter templates until they
studied data structures. So in short, I don't be
> >
> > Thanks Thomas yes you are right with append. I have tried it but just
> > can't get it yet as append takes only 1 argument and I wish to give it 3.
> >
> You have not showed us what you tried, but you are probably missing a pair
> of brackets.
>
> C:\Users\User>python
> Python 3.6.0 (v
Stefan Ram wrote:
Just as Python's »string[::-1]« appears "obfuscated"
to readers who don't know Python.
I understand string[::-1] after only studying python for a day or two
(I've only been studying it for 2 weeks at this point). A student could
study C++ for a semester or more and not e
Stefan Ram wrote:
Bill writes:
Stefan Ram wrote:
bartc writes:
On 20/09/2017 02:31, Bill wrote:
it's implementation, I would say that C++ has it all over Python from
the point of view of "intuitiveness". It's much easier to tell what's
going on, at a glance, in a C++ program.
You're being
zljubi...@gmail.com wrote:
> I have sliced the pandas dataframe
>
> end_date = df[-1:]['end']
>
> type(end_date)
> Out[4]: pandas.core.series.Series
>
> end_date
> Out[3]:
> 48173 2017-09-20 04:47:59
> Name: end, dtype: datetime64[ns]
>
> 1.How to get rid of index value 48173 and get onl
On 2017-09-21 20:27, zljubi...@gmail.com wrote:
I have sliced the pandas dataframe
end_date = df[-1:]['end']
type(end_date)
Out[4]: pandas.core.series.Series
end_date
Out[3]:
48173 2017-09-20 04:47:59
Name: end, dtype: datetime64[ns]
1. How to get rid of index value 48173 and get only
On 9/21/17, Steve D'Aprano wrote:
> In the iPython interactive interpreter, obj? prints information about the
> given
> object. For example:
>
>
> In [11]: None?
> Type: NoneType
> Base Class:
> String Form:None
> Namespace: Python builtin
> Docstring:
>
>
> Does anyone know that the Nam
Organizational Behavior and Management, 11th Edition by Robert Konopaske and
John Ivancevich and Michael Matteson
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On 9/21/2017 10:11 AM, Ned Batchelder wrote:
I can only assume that the actual data being read is different than
the data they put into the message here.
--Ned.
There was a typo in the file that I had made and saved; an extra comma
before one of the ":". Apologies to the list for not catchi
I have sliced the pandas dataframe
end_date = df[-1:]['end']
type(end_date)
Out[4]: pandas.core.series.Series
end_date
Out[3]:
48173 2017-09-20 04:47:59
Name: end, dtype: datetime64[ns]
1. How to get rid of index value 48173 and get only "2017-09-20 04:47:59"
string? I have to call RE
Stefan Behnel writes:
> https://docs.python.org/devguide/committing.html#what-s-new-and-news-entries
>
> https://github.com/larryhastings/blurb
Also of interest is the more general-use Town Crier tool:
towncrier is a utility to produce useful, summarised news files for
your project. Rat
Stefan Ram wrote:
bartc writes:
On 20/09/2017 02:31, Bill wrote:
it's implementation, I would say that C++ has it all over Python from
the point of view of "intuitiveness". It's much easier to tell what's
going on, at a glance, in a C++ program.
You're being serious, aren't you?
For one
On Fri, Sep 22, 2017 at 3:49 AM, Steve D'Aprano
wrote:
> On Fri, 22 Sep 2017 03:31 am, Chris Angelico wrote:
>
>> Impressive. That means that, in 2.7, it's actually equivalent to:
>>
> def test3():
>> ... if not foo: raise AssertionError, "bar baz"
>
> That's nothing. In 1.5 (yes, *one* po
On Fri, 22 Sep 2017 03:31 am, Chris Angelico wrote:
> On Fri, Sep 22, 2017 at 3:23 AM, Steve D'Aprano
> wrote:
>> That is definitely version-dependent, because I've just tried it and got
>> different byte-code in Python 2.7.
>>
>> py> import dis
>> py> def test1():
>> ... assert foo, "bar baz
On Fri, 22 Sep 2017 02:29 am, Tobiah wrote:
> Are these completely equivalent?
>
> def foo(thing):
>
> assert(thing > 0), "Thing must be greater than zero"
>
>
> def foo(thing):
>
> if not (thing > 0): raise AssertionError("Thing must be greater than
> zero")
>
>
> O
On Fri, Sep 22, 2017 at 3:07 AM, Rhodri James wrote:
> On 21/09/17 17:31, Chris Angelico wrote:
>>
>> For a good while, I was in the same position. But instead of massively
>> rewriting everything, all I did was to adjust the material to use
>> Py2/Py3 compatible syntax. Adding parens around your
On Fri, Sep 22, 2017 at 3:23 AM, Steve D'Aprano
wrote:
> That is definitely version-dependent, because I've just tried it and got
> different byte-code in Python 2.7.
>
> py> import dis
> py> def test1():
> ... assert foo, "bar baz"
> ...
> py> def test2():
> ... if not foo: raise Assertio
On Fri, 22 Sep 2017 02:59 am, Ned Batchelder wrote:
> On 9/21/17 12:29 PM, Tobiah wrote:
>> Are these completely equivalent?
[... assert, versus test and raise AssertionError ...]
> Let's see:
[...]
> Yes, they are completely equivalent, compiling to precisely the same
> bytecode.
That is defin
On 21/09/17 17:31, Chris Angelico wrote:
For a good while, I was in the same position. But instead of massively
rewriting everything, all I did was to adjust the material to use
Py2/Py3 compatible syntax. Adding parens around your print calls won't
stop it from being Py2-compatible, and it means
On 9/21/17 12:29 PM, Tobiah wrote:
Are these completely equivalent?
def foo(thing):
assert(thing > 0), "Thing must be greater than zero"
def foo(thing):
if not (thing > 0): raise AssertionError("Thing must be greater than
zero")
Other than the fact that the assertion can
In the iPython interactive interpreter, obj? prints information about the given
object. For example:
In [11]: None?
Type: NoneType
Base Class:
String Form:None
Namespace: Python builtin
Docstring:
Does anyone know that the Namespace field is supposed to show? I can't get it to
display
On 9/21/17 12:18 PM, john polo wrote:
Bill,
Thanks for the reply. I wasn't sure how to get Python 2 through the
cmd or IPython, so I went through ArcGIS, but it's mostly the same
result:
>>> file = open('books.json','r')
>>> text = file.read()
>>> text = json.loads(text)
After the file.read
On Fri, Sep 22, 2017 at 1:59 AM, Rhodri James wrote:
> On 21/09/17 16:12, Steve D'Aprano wrote:
>>
>> On Thu, 21 Sep 2017 08:19 pm, Rhodri James wrote:
>>
>>> (That's basically my gripe against print becoming a function in Python3.
>>>It makes a lot of sense as has already been pointed out, bu
Are these completely equivalent?
def foo(thing):
assert(thing > 0), "Thing must be greater than zero"
def foo(thing):
if not (thing > 0): raise AssertionError("Thing must be greater than
zero")
Other than the fact that the assertion can be turned off
with -O?
Thanks,
Tob
On 9/21/2017 4:24 AM, Thomas Jollans wrote:
It looks to me like the root cause of the problem was that they copied
the code from a web page, and the web page contained invalid JSON.
Thank you, Thomas.
John
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https://mail.python.org/mailman/listinfo/python-list
On 9/20/2017 6:40 PM, Dennis Lee Bieber wrote:
On Wed, 20 Sep 2017 17:13:41 -0500, john polo
declaimed the following:
and the example code for reading the file is:
file = open('books.json','r')
What encoding is the file? I did a cut&paste from your post into a
file, and the content
On 9/20/2017 5:58 PM, Bill wrote:
Interesting problem, John.
I have probably even less experience with json than you do, so I'm
taking this as an opportunity to learn with you.
Suggestions:
1. Try your example with Python 2 rather than Python 3.
Bill,
Thanks for the reply. I wasn't sure how
On 9/20/2017 5:56 PM, John Gordon wrote:
In john polo
writes:
JSONDecodeError: Expecting ':' delimiter: line 5 column 50 (char 161)
?json.loads says that the method is for deserializing "s", with "s"
being a string, bytes, or bytearray.
In [24]: type(text)
Out[24]: str
So "text" seems to be
On 21/09/17 16:12, Steve D'Aprano wrote:
On Thu, 21 Sep 2017 08:19 pm, Rhodri James wrote:
(That's basically my gripe against print becoming a function in Python3.
It makes a lot of sense as has already been pointed out, but it breaks
every beginners tutorial.)
Nobody made that decision lig
I’m happy to announce the availability of a new mailing list, with the mission
of providing security announcements to the Python community from the Python
Security Response Team (PSRT):
security-annou...@python.org
You can sign up in the usual Mailman way:
https://mail.python.org/mailman/listi
On Thu, 21 Sep 2017 08:19 pm, Rhodri James wrote:
> (That's basically my gripe against print becoming a function in Python3.
> It makes a lot of sense as has already been pointed out, but it breaks
> every beginners tutorial.)
Nobody made that decision lightly. It wasn't a spur of the moment de
On 9/20/17 10:35 PM, Bill wrote:
Ned Batchelder wrote:
On 9/20/17 8:22 PM, Bill wrote:
Apparenty an \xa0 byte corresponds to a "non-breaking space". What
sort of white space characters are allowed in a json file ( tabs and
newlines?)? Just curious.
These things can be looked up. From RFC
PyDev 6.0.0 Release Highlights
-
*Important* PyDev now requires Java 8 and Eclipse 4.6 (Neon) onwards.
- PyDev 5.2.0 is the last release supporting Eclipse 4.5 (Mars).
-
*Interpreter configuration*
- The *list of packages* installed in the interpreter is shown in the
IDE
On 2017-09-21 12:38, Sayth Renshaw wrote:
> Thanks Thomas yes you are right with append. I have tried it but just can't
> get it yet as append takes only 1 argument and I wish to give it 3.
>
> I am really having trouble creating the groups of 3, since I am getting one
> consistent stream.
I su
On 21/09/2017 11:18, Sayth Renshaw wrote:
Hi
I have been toying with json and I particular area where I cannot get the
desired result a list of tuples as my return. The json from the API is way to
long but I don't think it will matter.
.. hitting url
data = r.json()
for item in data["RaceDay
On 20/09/2017 02:31, Bill wrote:
Rick Johnson wrote:
I think for most languages an intuitive syntax is not
important -- C is such a language, Lisp is such a language,
Perl is such a language, and there are many more -- but
for Python, intuitiveness is very important.
I guess it depends on what
INADA Naoki wrote:
> Rick Johnson wrote
[...]
> > Of course, allowing all objects to use the `==`, `!=`
> > sugars makes perfect sense, but `<`, `>`, `<=`, `>=` are
> > meaningless outside of numeric-ish types.
>
> Now you know why Python 3 was born! It's one of many
> pitfalls in Python 2 fixed i
Bill wrote:
> Rick Johnson wrote:
> > I think for most languages an intuitive syntax is not
> > important -- C is such a language, Lisp is such a
> > language, Perl is such a language, and there are many more
> > -- but for Python, intuitiveness is very important.
> >
> I guess it depends on what y
"Sayth Renshaw" wrote in message
news:cd4aa5c7-47ee-442b-945e-490b0674e...@googlegroups.com...
Thanks Thomas yes you are right with append. I have tried it but just
can't get it yet as append takes only 1 argument and I wish to give it 3.
You have not showed us what you tried, but you are p
On 19/09/17 19:31, bartc wrote:
Can't you get around all those with things like sys.stdout.write?
If so, what was the point of having a discrete print statement/function
at all?
Simplicity. It is much easier to explain to a beginner that
print("Wombats are go!")
will write something to
On Thursday, 21 September 2017 20:31:28 UTC+10, Thomas Jollans wrote:
> On 2017-09-21 12:18, Sayth Renshaw wrote:
> > This is my closest code
> >
> > data = r.json()
> >
> > raceData = []
> >
> > for item in data["RaceDay"]['Meetings'][0]['Races']:
> > raceDetails = item['RacingFormGuide'][
On 2017-09-21 12:18, Sayth Renshaw wrote:
> This is my closest code
>
> data = r.json()
>
> raceData = []
>
> for item in data["RaceDay"]['Meetings'][0]['Races']:
> raceDetails = item['RacingFormGuide']['Event']['Race']
> raceData +=
> (raceDetails['Name'],raceDetails['Number'],raceDeta
Hi
I have been toying with json and I particular area where I cannot get the
desired result a list of tuples as my return. The json from the API is way to
long but I don't think it will matter.
.. hitting url
data = r.json()
for item in data["RaceDay"]['Meetings'][0]['Races']:
raceDetails
Hartmut Goebel schrieb am 21.09.2017 um 10:59:
> I just discovered that CPython now uses Misc/NEWS.d/next to collect
> changes an there are a lot of Misc/NEWS/*.rst files for the respective
> released version. I'm investigating whether to adopt this for PyInstaller.
>
> What is the tooling for thi
On 21 September 2017 at 09:59, Hartmut Goebel
wrote:
> Hello,
>
> I just discovered that CPython now uses Misc/NEWS.d/next to collect
> changes an there are a lot of Misc/NEWS/*.rst files for the respective
> released version. I'm investigating whether to adopt this for PyInstaller.
>
> What is th
On 2017-09-19 20:21, Stefan Ram wrote:
> I do not use UTF-8
>
Why on earth not?!
--
Thomas Jollans
--
https://mail.python.org/mailman/listinfo/python-list
On 2017-09-21 04:35, Bill wrote:
> Ned Batchelder wrote:
>>
>> On 9/20/17 8:22 PM, Bill wrote:
>>> Apparenty an \xa0 byte corresponds to a "non-breaking space". What
>>> sort of white space characters are allowed in a json file ( tabs and
>>> newlines?)? Just curious.
>>
>> These things can be lo
> I just discovered that CPython now uses Misc/NEWS.d/next to collect
> changes an there are a lot of Misc/NEWS/*.rst files for the respective
> released version. I'm investigating whether to adopt this for PyInstaller.
>
> What is the tooling for this? Is there some documentation, maybe a
> mailin
On 2017-09-20 21:52, Terry Reedy wrote:
> On 9/20/2017 1:09 PM, Joey Steward wrote:
>> -- Forwarded message --
>> From: Joey Steward
>> Date: Tue, Sep 19, 2017 at 10:30 PM
>> Subject: Issues with python commands in windows powershell
>> To: python-list@python.org
>>
>>
>> Hello,
>>
Hello,
I just discovered that CPython now uses Misc/NEWS.d/next to collect
changes an there are a lot of Misc/NEWS/*.rst files for the respective
released version. I'm investigating whether to adopt this for PyInstaller.
What is the tooling for this? Is there some documentation, maybe a
mailingsl
On 9/20/17, Steve D'Aprano wrote:
> On Wed, 20 Sep 2017 02:55 pm, Pavol Lisy wrote:
Thanks Steve, I agree with most of your mail and really appreciate
interesting reading! :)
> (a) "you save one character (two keystrokes)"; and
First I have to admit that I forgot space! But if we like to be
ped
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