problems

[kur3k]

Hello

My english is not good, so pleas - understat me ;-)

I have two question about python ;)

1. I'm from poland, in poland letter a == ą, z == ź itp. Can i remove polsich letter?

example

in input - jacek bąk

in output - jacek bak

I can use unicode, but, how? or ... i must creat 'krtoka' - (1,2,3)

2. How fast, i can creat list of list

exapmle

[[1,2,3],[1,2,3]]

this list creat user

thank ;-)

[jice]

Problem 1 (done with python 2.4)

# -*- coding: latin-1 -*-
# The first line is important and must be consistant with your file encoding (maybe utf8)
import string
t=string.maketrans('àéèëêôöîïù', 'aeeeeooiiu') 
print "lévitèrent à l'ïstrùmen".translate(t)

for python 3.1

# -*- coding: latin-1 -*-
t=str.maketrans('àéèëêôöîïù', 'aeeeeooiiu')
print ("lévitèrent à l'ïstrùmen".translate(t))

problem 2

mylist=[]
for i in range(10):
    mylist.append([])
    for j in range(1,9,2):
        mylist[i].append(j)
print mylist

# same result with list comprehension
print [[i for i in range(1,9,2)] for i in range(10)]

[kur3k]

thaks;)

# -*- coding: utf-8 -*-

import string

x = []
text = raw_input()
x.append(text)

t = string.maketrans('ąóęśłżźćńĄÓĘŚŁŻŹĆŃ', 'aoeslzzcnAOESLZZCN')

for i in x:
    print i.translate(t),

what is wrong?

[kur3k]

# -*- coding: utf-8 -*-

import string

x = []

t = string.maketrans('ąóęśłżźćńĄÓĘŚŁŻŹĆŃ', 'aoeslzzcnAOESLZZCN')

text = raw_input(u"> ")
for i in x:
    x.append(i.translate(t))

print x

other cod, but don't run ... coding is ... xD

[jice]

What's the error message ?
Probably a decoding encoding problem...
try things like

t = string.maketrans('ąóęśłżźćńĄÓĘŚŁŻŹĆŃ'.decode("utf8").encode("latin1"), 'aoeslzzcnAOESLZZCN').decode("utf8").encode("latin1"))

[woooee]

You can use a one to one dictionary
"ą" --> "a"
or use the ord/decimal value if there are codec conversion problems. A decimal value conversion dictionary would be something like:

conv_dict = {}
conv_dict[ord("ą")] = "a"
#
# and to convert
test_ch = "ą"
if ord(test_ch) in conv_dict:
    test_ch = conv_dict[ord(test_ch)]

[kur3k]

jice, this example is not better, it show many error ...

woooee, thanks but i search short code and dynamic so who know something about this problem, wrire - pleas ... ; ]

[Gribouillis]

I found a funny module on the web, called unidecode http://code.zemanta.com/tsolc/unidecode/ . Here is my result

>>> from unidecode import unidecode
>>> unidecode(u'ąóęśłżźćńĄÓĘŚŁŻŹĆ')
'aoeslzzcnAOESLZZC'

nice, isn't it ?

Edit: it's also in pypi: http://pypi.python.org/pypi/Unidecode

[kur3k]

Yes, nice but i must have some modules? unicode is basic modules in python?

[Gribouillis]

What is your platform windows, linux , other ? Also what is your version of python, 2.6 ?
A good thing to do is go here http://pypi.python.org/pypi/setuptools and download and instal setuptools by following the installation instructions. Then in a console, simply type

easy_install unidecode

This works for all the modules in the Python package index (Pypi http://pypi.python.org ). Then you can use the module.

Also note that the module name is not unicode but unidecode !

[kur3k]

I can use function replace? For example

text = raw_input()

text.replace("ą", "a")

This code isnt run .. why? replace i can use for ... ?

[Gribouillis]

Try to run this

import sys
def main():
    text = raw_input("Enter some words with polish letters:")
    print repr(text)
    print sys.version_info
    print sys.platform
    print sys.executable
main()

and post the output here between code tags.
Could you download and rununidecode ?

[kur3k]

Could you download and run unidecode ?

I download modules unidecode and instal, IDLE return for me error - i dont have this modules ...

i use win os ( i download installer for win, python 2.6 )

[Gribouillis]

It's impossible, it's very easy to install. Try this

>>> import setuptools
>>>

does this work ?
If this works
1) open a windows console
2) type: easy_install unidecode
look at the printed messages. If it works, then restart a python shell and try

>>> import unidecode

if import setuptools doesn't work we are going to install setuptools first.

[Gribouillis]

I tested the procedure on windows XP. I was able to install unidecode like this

C:\Python26\python.exe C:\Python26\Lib\site-packages\easy_install.py unidecode

In a cmd.exe terminal.

[pyTony]

The problem analysis:

# -*- coding: utf-8 -*-

import string

x = []
a='ąóęśłżźćńĄÓĘŚŁŻŹĆŃ' ## utf8 has variable number of bytes
##a='boeslzzcnAOESLZZCN' #only changes b to a to test the end of the solution
b='aoeslzzcnAOESLZZCN'

print a,len(a),b,len(b)  ## here is why
t = string.maketrans(a,b)

text = raw_input("> ").translate(t)

print text

If you can use above mentioned premade module OK, otherwise use loop of the conversion strings and dictionary to save the mapping string1 -> string2. Save the strings as real unicode to have same amount of bytes per letter to simplify solution.

Greeting, Tony Veijalainen

[pyTony]

Here some dict lookup code:

# -*- coding: utf-8 -*-

import string

x = []
a='ąóęśłżźćńĄÓĘŚŁŻŹĆŃ' ## utf8 has variable number of bytes
b='aoeslzzcnAOESLZZCN'

au=unicode(a,'utf8')

unpolish=dict()

for i in range(len(au)):
    unpolish[au[i]]=b[i]

print unpolish

def unp(a):
    a=unicode(a,'utf-8')
    t=''
    for i in a:
        if i in unpolish:
            t+=unpolish[i]
        else:
            t+=i
    return t

print
print 'Unpolishing the conversion string'
print a,'unpolished is',unp(a)

[pyTony]

P.S:
a='ąóęśłżźćńĄÓĘŚŁŻŹĆŃ'.decode('utf8') ## utf8 has variable number of bytes
fixes the len, but still the variable number of bytes per letter confuse maketrans (and translate would not work)

Tony

[kur3k]

This is my code http://wklej.org/id/314014/

This is 'simulator' send SMS, i must remove polish letter, but i don't how. I read many reply and i still don't now.

Pleas, i must finish this homework in few day ...

kur3k ( sorry, my english is no good )

[Gribouillis]

Ok, last trial, can you *run* this file and *post* its output in this thread ?

# run_me.py
import os, sys, os.path

class Command(object):
    """Run a command and capture it's output string, error string and exit status"""

    def __init__(self, command):
        self.command = command 

    def run(self, shell=True):
        import subprocess as sp
        process = sp.Popen(self.command, shell = shell, stdout = sp.PIPE, stderr = sp.PIPE)
        self.pid = process.pid
        self.output, self.error = process.communicate()
        self.failed = process.returncode
        return self

    @property
    def returncode(self):
        return self.failed

def main():
    try:
        import easy_install
    except ImportError:
        print("Could not import easy_install")
        return
    com = Command("%s %s unidecode" % (sys.executable, easy_install.__file__)).run()
    if com.failed:
        print com.output
        print com.error
    else:
        try:
            import unidecode
        except ImportError:
            print("Could not import unidecode")
        else:
            print("Module unidecode is installed")

main()