[Tutor] arrary stastic

[lina]

On Wed, Oct 5, 2011 at 12:26 AM, Dave Angel <d at davea.name> wrote:

> On 10/04/2011 12:01 PM, bob gailer wrote:
>
>> On 10/4/2011 10:07 AM, lina wrote:
>>
>>> want to do a statistic of the concurrence of E,
>>>
>>>    namely,
>>>    how many times the E showed up,
>>>
>>>    so the first column is 1, second column and then following.
>>>
>>>    Thanks,
>>>
>>>    I have one, which showed something like:
>>>
>>>
>>>
>>>    tokens=['E']
>>>
>>>    result=[]
>>>    filedata = open("try.xpm")
>>>    text=filedata.readlines()
>>>
>>>    for line in text:
>>>        result.append({t:line.count(t) for t in tokens})
>>>
>>>    for index,r in enumerate(result):
>>>        print(index,"-----",r)
>>>
>>>    The error message is:
>>>
>>>
>>>        result.append({t:line.count(t) for t in tokens})
>>>                                         ^
>>>    SyntaxError: invalid syntax
>>>
>>>  You are tryng to use a list comrehensioin for the dictionary value,
>> without the []. Try this:
>>
>>   result.append({t:[line.count(**t) for t in tokens]})
>>
>> You should then see:
>> 0, '-----', {'E': [1]})
>> (1, '-----', {'E': [2]})
>> (2, '-----', {'E': [2]})
>>
>> which is not what you want!
>>
>> As requested before, show us the output you do want. Not a description but
>> the actual output.
>>
>> -- Bob Gailer 919-636-4239 Chapel Hill NC
>>
>>  I'll second Bob's request, and go further:  Move this discussion into
>  the original thread, and repeat in one place your assumptions for input,
> requirements for

I will move back to the original thread.

Thanks for your suggestions.

> output, the code you're using and how the output differs from what you
> expect.
>
> You also need to give your target python version, and if you're currently
> getting an exception the full stack trace.  Finally, if it's relevant, the
> operating system as well.
>
> I think you've given almost all of this, except the python version and the
> expected file output.
>


I guess mainly choose python3, the default python is $ python
Python 2.6.7 (r267:88850, Jul 10 2011, 08:11:54)
[GCC 4.6.1] on linux2

python
python2.5
python2.6
python2.7
python3
python3.1
python3.2
python3.2mu




>
> --
>
> DaveA
>
>


-- 
Best Regards,

lina
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