Help with code-lists and strings
Cathy James
nambo4jb at gmail.com
Wed Jan 5 21:39:56 EST 2011
Thank you all for your help.
1) I need to list words with uppercase first, then those with lower case; I
used istitle() and isupper (don't know the method for mixed case yet)
2) Steve, it's a compliment that you though I'd undersand your code, but I
only know conditional statements, started on lists, not functions yet. nand
is still Greek to me right now.
3) If someone input "Thank you my FOLKS, i want the output to print words
with upper case first:
Thank
FOLKS
you
my
3) Can someone help me make my code work in a very simple way. I am still
learning, but watch this space colleagues; I may be helping you guys in a
few months ;)
Thanks to all who took their time to help.
Future Python Expert,
Cathy.
My initial code:
s=input("Write a sentence: ")
list=s.strip().split()
for word in list:
list2 = (word.isupper() or word.istitle())
print (word)
else print (word)
On Wed, Jan 5, 2011 at 7:35 PM, <python-list-request at python.org> wrote:
> Send Python-list mailing list submissions to
> python-list at python.org
>
> To subscribe or unsubscribe via the World Wide Web, visit
> http://mail.python.org/mailman/listinfo/python-list
> or, via email, send a message with subject or body 'help' to
> python-list-request at python.org
>
> You can reach the person managing the list at
> python-list-owner at python.org
>
> When replying, please edit your Subject line so it is more specific
> than "Re: Contents of Python-list digest..."
>
> Today's Topics:
>
> 1. Re: Help with code-lists and strings (GrayShark)
> 2. Help with a Python coding question (kanthony at woh.rr.com)
> 3. Re: Help with a Python coding question (Emile van Sebille)
> 4. Re: Help with a Python coding question (Justin Peel)
> 5. Importing modules from miscellaneous folders (Jshgwave)
> 6. Searching Python-list (Slie)
> 7. Re: Interrput a thread (Adam Skutt)
>
>
> ---------- Forwarded message ----------
> From: GrayShark <howe.steven at gmail.com>
> To: python-list at python.org
> Date: Wed, 05 Jan 2011 16:56:40 -0600
> Subject: Re: Help with code-lists and strings
> On Wed, 05 Jan 2011 14:58:05 -0500, Terry Reedy wrote:
>
> > On 1/5/2011 12:57 PM, Cathy James wrote:
> >
> >> I am learning python and came across an excercise where i need to use
> >> lists to strip words from a sentence; starting with those containing
> >> one or more uppercase letters, followed by words with lower case
> >> letters.
> >
> > When writing code, it is good to start with one or more input-output
> > pairs that constitute a test. For example, what, exactly, do you want to
> > result from
> > "Some special words are ALLCAPS, TitleCase, and MIXed."
> >
> > It is also good to think about all relevant cases. Note the following:
> > >>> 'MIXed'.isupper() or 'MIXed'.istitle()
> > False
> >
> > Do you want punctuation stripped off words? You might skip that at
> > first.
>
> In python it's best to build up you functional needs. So two steps. First
> a nand (negative 'and' operation). Then wrap that with a function to create
> two strings of your list element, you''re calling 'word'. By the way,
> list is reserved word, like string. Don't get in the bad habit of using it.
>
> def nand( a, b ):
> """nand has to vars. Both must be strings """
> return( ( not eval( a ) ) and ( not eval( b ) ) )
>
> Eval of 'Abcd'.isupper() returns False. Ditto 'Abcd'.islower(); negate both
> results, 'and' values, return.
>
> Now wrap 'nand' in packaging an you're cooking with grease.
> def mixed_case( str ):
> return nand( "'%s'.islower()" % str , "'%s'.isupper()" % str )
>
> or if that's too advanced/compact, try ...
> def mixed_case( str ):
> # nand() needs strings
> a = "'%s'.isupper()" % str
> b = "'%s'.islower()" % str
> res = nand( a, b )
> return res
>
> >>> mixed_case('Abcd' )
> True
> >>> mixed_case('ABCD' )
> False
> >>> mixed_case('abcd' )
> False
>
> Good luck
> Steven Howe
>
>
>
> ---------- Forwarded message ----------
> From: kanthony at woh.rr.com
> To: python-list at python.org
> Date: Wed, 05 Jan 2011 17:12:13 -0600
> Subject: Help with a Python coding question
> I want to use Python to find all "\n" terminated
> strings in a PDF file, ideally returning string
> starting addresses. Anyone willing to help?
>
>
> --
> --------------------------------- --- -- -
> Posted with NewsLeecher v4.0 Final
> Web @ http://www.newsleecher.com/?usenet
> ------------------- ----- ---- -- -
>
>
>
>
> ---------- Forwarded message ----------
> From: Emile van Sebille <emile at fenx.com>
> To: python-list at python.org
> Date: Wed, 05 Jan 2011 15:45:36 -0800
> Subject: Re: Help with a Python coding question
> On 1/5/2011 3:12 PM kanthony at woh.rr.com said...
>
>> I want to use Python to find all "\n" terminated
>> strings in a PDF file, ideally returning string
>> starting addresses. Anyone willing to help?
>>
>
> pdflines = open(r'c:\shared\python_book_01.pdf').readlines()
> sps = [0]
> for ii in pdflines: sps.append(sps[-1]+len(ii))
>
> Emile
>
>
>
>
> ---------- Forwarded message ----------
> From: Justin Peel <peelpy at gmail.com>
> To: python-list at python.org
> Date: Wed, 5 Jan 2011 18:14:28 -0700
> Subject: Re: Help with a Python coding question
>
>
> On Wed, Jan 5, 2011 at 4:45 PM, Emile van Sebille <emile at fenx.com> wrote:
>
>> On 1/5/2011 3:12 PM kanthony at woh.rr.com said...
>>
>> I want to use Python to find all "\n" terminated
>>> strings in a PDF file, ideally returning string
>>> starting addresses. Anyone willing to help?
>>>
>>
>> pdflines = open(r'c:\shared\python_book_01.pdf').readlines()
>> sps = [0]
>> for ii in pdflines: sps.append(sps[-1]+len(ii))
>>
>> Emile
>>
>>
>> --
>> http://mail.python.org/mailman/listinfo/python-list
>>
> Bear in mind that pdf files often have compressed objects in them. If that
> is the case, then I would recommend opening the pdf in binary mode and
> figuring out how to deflate the correct objects before doing any searching.
> PyPDF is a package that might help with this though it could use some
> updating.
>
> ---------- Forwarded message ----------
> From: Jshgwave <jshgwave at yahoo.com>
> To: python-list at python.org
> Date: Wed, 5 Jan 2011 17:08:14 -0800 (PST)
> Subject: Importing modules from miscellaneous folders
> On a Windows PC, I would like to be able to store modules in
> topic-specific foldersinstead of in Python26/Lib/site-packages,
> and then import into an IPython session those modules and the
> functions in them.
>
> To test this, I have made a toy module:
>
> ---
>
> """
> toy_module.py
>
> This is for testing the importing of modules from folders
> other than "Lib".
>
> The first statement below is from Langtangen, Primer, p.143.
> At allows running the module as a program, as well as
> importing it as a module.
> """
>
>
> if __name__ == '__main__' :
>
> def double_it (a) :
> b = 2.*a
> print 'double_it in toy_module: a = ', a, ', b = ', b
> return b
>
>
> def triple_it (a) :
> b = 3.*a
> print 'triple_it in toy_module: a = ', a, ', b = ', b
> return b
> ---
>
> I have tried many ways of importing this module and its functions, but
> all of them have failed. In the IPython session below, the failures
> have been flagged for easy identification by "<<<".
>
> ---
>
> Python 2.6.6 (r266:84297, Aug 24 2010, 18:46:32) [MSC v.1500 32 bit
> (Intel)]
> Type "copyright", "credits" or "license" for more information.
>
> IPython 0.10.1 -- An enhanced Interactive Python.
> ? -> Introduction and overview of IPython's features.
> %quickref -> Quick reference.
> help -> Python's own help system.
> object? -> Details about 'object'. ?object also works, ?? prints more.
>
> In [1]: # Test importing from other than Lib.
>
> In [2]: # 2011-01-05
>
> In [3]: function_dir = 'G:\\Python_2010-12\\JH_Python_Functions'
>
> In [4]: # That is for the PC at work.
>
> In [5]: import os
>
> In [6]: os.getcwd()
> Out[6]: 'C:\\Documents and Settings\\Hornstein'
>
> In [7]: os.chdir(function_dir)
>
> In [8]: os.getcwd()
> Out[8]: 'G:\\Python_2010-12\\JH_Python_Functions'
>
> In [9]: import toy_module
>
> In [10]: result1 = toy_module.double_it(3.)
> ---------------------------------------------------------------------------
> AttributeError Traceback (most recent call last)
>
> G:\Python_2010-12\JH_Python_Functions\<ipython console> in <module>()
>
> AttributeError: 'module' object has no attribute 'double_it' <<< 1
>
> In [11]: from toy_module import double_it as twox
> ---------------------------------------------------------------------------
> ImportError Traceback (most recent call last)
>
> G:\Python_2010-12\JH_Python_Functions\<ipython console> in <module>()
>
> ImportError: cannot import name double_it <<< 2
>
> In [12]: IsFileThere = os.isfile('toy_module.py')
> ---------------------------------------------------------------------------
> AttributeError Traceback (most recent call last)
>
> G:\Python_2010-12\JH_Python_Functions\<ipython console> in <module>()
>
> AttributeError: 'module' object has no attribute 'isfile'
>
> In [13]: IsFileThere = os.path.isfile('toy_module.py')
>
> In [14]: IsFileThere
> Out[14]: True
>
> In [15]: filelist = os.listdir(function_dir)
>
> In [16]: filelist
> Out[16]:
> ['arc_to_-pitopi.py',
> 'arc_to_0to2pi.py',
> 'ClustersOfGalaxiesUtils.py',
> 'ClustersOfGalaxiesUtils.py.txt',
> 'ClustersOfGalaxiesUtils.Test.2010-08-04.1.txt',
> 'CosmolFns.py.txt',
> 'CosmolGeom_SmoothedMatter_CL.py.txt',
> 'Distances_z.py.txt',
> 'extract_text_line.py',
> 'JH.PythonExperimentsOnWindows.2011-01-03.txt',
> 'LAMBDA_calc.py',
> 'loop_to_sum.example.py',
> 'number_theory.py',
> 'omega_plasma_radHz.py',
> 'README.txt',
> 'Sampletxt.IPython.txt',
> 'Sampletxt.txt',
> 'script2_1.py',
> 'synchRadn.py.txt',
> 'toy_module.py',
> 'toy_module.pyc',
> 'uv2D.Feb14-06.py <http://uv2d.feb14-06.py/>',
> 'VariablesInFile.py',
> 'VariablesInFile.pyc',
> 'VLA_beamwidths.py',
> 'z_cosmol.py']
>
> In [17]: import glob
>
> In [18]: pyfilelist = glob.glob('*.py')
>
> In [19]: pyfilelist
> Out[19]:
> ['arc_to_-pitopi.py',
> 'arc_to_0to2pi.py',
> 'ClustersOfGalaxiesUtils.py',
> 'extract_text_line.py',
> 'LAMBDA_calc.py',
> 'loop_to_sum.example.py',
> 'number_theory.py',
> 'omega_plasma_radHz.py',
> 'script2_1.py',
> 'toy_module.py',
> 'uv2D.Feb14-06.py <http://uv2d.feb14-06.py/>',
> 'VariablesInFile.py',
> 'VLA_beamwidths.py',
> 'z_cosmol.py']
>
> In [20]: # Try changing the Python search path.
>
> In [21]: import sys
>
> In [22]: sys.path
> Out[22]:
> ['',
> 'C:\\Python26\\scripts',
> 'C:\\WINDOWS\\system32\\python26.zip',
> 'C:\\Python26\\DLLs',
> 'C:\\Python26\\lib',
> 'C:\\Python26\\lib\\plat-win',
> 'C:\\Python26\\lib\\lib-tk',
> 'C:\\Python26',
> 'C:\\Python26\\lib\\site-packages',
> 'C:\\Python26\\lib\\site-packages\\IPython/Extensions',
> u'C:\\Documents and Settings\\Hornstein\\_ipython']
>
> In [23]: sys.path.append(function_dir)
>
> In [24]: sys.path
> Out[24]:
> ['',
> 'C:\\Python26\\scripts',
> 'C:\\WINDOWS\\system32\\python26.zip',
> 'C:\\Python26\\DLLs',
> 'C:\\Python26\\lib',
> 'C:\\Python26\\lib\\plat-win',
> 'C:\\Python26\\lib\\lib-tk',
> 'C:\\Python26',
> 'C:\\Python26\\lib\\site-packages',
> 'C:\\Python26\\lib\\site-packages\\IPython/Extensions',
> u'C:\\Documents and Settings\\Hornstein\\_ipython',
> 'G:\\Python_2010-12\\JH_Python_Functions']
>
> In [25]: import toy_module
>
> In [26]: result1 = toy_module.double_it(3.)
> ---------------------------------------------------------------------------
> AttributeError Traceback (most recent call last)
>
> G:\Python_2010-12\JH_Python_Functions\<ipython console> in <module>()
>
> AttributeError: 'module' object has no attribute 'double_it' <<< 3
>
> In [27]: exit()
> Do you really want to exit ([y]/n)?
>
>
> Any insight would be appreciated.
>
> Also, it is unfortunate that no warning is issued when an attempt at
> importing fails.
>
> John Hornstein
>
>
> (By the way, I am stuck with Python2.6 because the binary installer for
> NumPy on Windows still refuses to accept any later version of Python.)
>
>
>
> ---------- Forwarded message ----------
> From: Slie <stackslip at gmail.com>
> To: python-list at python.org
> Date: Wed, 5 Jan 2011 16:31:13 -0900
> Subject: Searching Python-list
> I was wondering if anyone could tell me how to search through the Archives
> otter then manually looking through each month.
>
>
>
>
> ---------- Forwarded message ----------
> From: Adam Skutt <askutt at gmail.com>
> To: python-list at python.org
> Date: Wed, 5 Jan 2011 17:25:49 -0800 (PST)
> Subject: Re: Interrput a thread
> On Jan 4, 10:53 pm, John Nagle <na... at animats.com> wrote:
> > There are systems where there's support designed in for thread
> > abort. LISP/Scheme systems tend to support it. QNX, the real-time
> > OS, has well worked out thread-abort semantics at the C level.
> > (QNX has really good features for "not getting stuck", like the
> > ability to put a time limit on any system call.)
>
> Yes, but "not getting stuck" and ending the thread execution is only
> one small part of the problem (and arguably the least significant).
> What we really want is a way to abort without harming other threads of
> execution, which is the hard part. QNX doesn't ipso facto make that
> easier. Functionality like time limits on system calls is more about
> latency guarantees and priority than "getting stuck" in a deadlock
> sense.
>
> > What you'd really like in Python is the ability for one thread
> > to be able to force an exception in another thread, plus a
> > mechanism for locking out such exceptions for critical sections.
> > It's not worth having, though, in a system where you can really only
> > run one thread at a time.
>
> Exceptions and critical sections are rather fundamentally
> incompatible, hence the absurd amount of gymnastics .NET goes through
> to attempt to make ThreadAbortException functional (and still fails
> rather miserably). If you had STM or 'antitry' blocks, then
> exceptions might be a semi-saneish way to abort a thread. Without
> either, I'm not entirely convinced of the utility.
>
> Only allowing the exception to be thrown from defined cancellation
> points is much better (ala POSIX threads), but diminishes the utility
> for things that are mostly grinding away in userspace.
>
> Adam
>
>
> --
> http://mail.python.org/mailman/listinfo/python-list
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.python.org/pipermail/python-list/attachments/20110105/3913985c/attachment-0001.html>
More information about the Python-list
mailing list