Re: How to replace characters in a string?
On 9/06/22 5:55 am, Dennis Lee Bieber wrote: There are no mutable strings in Python. If you really want a mutable sequence of characters, you can use array.array, but you won't be able to use it directly in place of a string in most contexts. -- Greg -- https://mail.python.org/mailman/listinfo/python-list
Re: How to replace characters in a string?
On 8/06/22 10:26 pm, Jon Ribbens wrote: Here's a head-start on some characters you might want to translate, Another possibility that might make sense in this case is to simply strip out all punctuation before comparing. That would take care of things being spelled with or without hyphens, commas, etc. -- Greg -- https://mail.python.org/mailman/listinfo/python-list
Re: How to replace characters in a string?
On Wed, 8 Jun 2022 11:09:05 +0200, Dave declaimed
the following:
>Hi,
>
>Thanks for this!
>
>So, is there a copy function/method that returns a MutableString like in
>objective-C? I’ve solved this problems before in a number of languages like
>Objective-C and AppleScript.
There are no mutable strings in Python. Any operation manipulating a
string RETURNS A MODIFIED NEW STRING.
>myString = 'Hello'
>myNewstring = myString.replace(myString,'e','a’)
>
Please study the library reference manual -- it should be clear what
the various string methods can perform. Hint: they are "methods", which
means whatever is before the . becomes the automatic "self" argument inside
the method)
https://docs.python.org/3/library/stdtypes.html#string-methods
"""
str.replace(old, new[, count])
Return a copy of the string with all occurrences of substring old
replaced by new. If the optional argument count is given, only the first
count occurrences are replaced.
"""
myNewstring = myString.replace("e", "a")
However... Please study
"""
static str.maketrans(x[, y[, z]])
This static method returns a translation table usable for
str.translate().
If there is only one argument, it must be a dictionary mapping Unicode
ordinals (integers) or characters (strings of length 1) to Unicode
ordinals, strings (of arbitrary lengths) or None. Character keys will then
be converted to ordinals.
If there are two arguments, they must be strings of equal length, and
in the resulting dictionary, each character in x will be mapped to the
character at the same position in y. If there is a third argument, it must
be a string, whose characters will be mapped to None in the result.
"""
"""
str.translate(table)
Return a copy of the string in which each character has been mapped
through the given translation table. The table must be an object that
implements indexing via __getitem__(), typically a mapping or sequence.
When indexed by a Unicode ordinal (an integer), the table object can do any
of the following: return a Unicode ordinal or a string, to map the
character to one or more other characters; return None, to delete the
character from the return string; or raise a LookupError exception, to map
the character to itself.
You can use str.maketrans() to create a translation map from
character-to-character mappings in different formats.
See also the codecs module for a more flexible approach to custom
character mappings.
"""
Hmmm, I'm out-of-date... I'm on v3.8 and .removeprefix() and
.removesuffix() (from v3.9) simplify my previous post... Instead of
if myString.lower().endswith(".mp3"): #lower() is a precaution for case
myString = myString[:-4]
just use
myString = myString.lower().removesuffix(".mp3")
{note, you'll have to make the compare using .lower() on the other name
since this statement returns a lowercased version}
--
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wlfr...@ix.netcom.comhttp://wlfraed.microdiversity.freeddns.org/
--
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Re: How to replace characters in a string?
> On 8 Jun 2022, at 18:01, Dave wrote: > > Hi, > > This is a tool I’m using on my own files to save me time. Basically or most > of the tracks were imported with different version iTunes over the years. > There are two problems: > > 1. File System characters are replaced (you can’t have ‘/‘ or ‘:’ in a file > name). ok > 2. Smart Quotes were added at some point, these need to replaced. ok > 3. Other character based of name being of a non-english origin. Why is this a problem? Its only if the chars are confusing/will not compare that there is something to fix? All modern OS allow unicode filenames. Barry > > If find others I’ll add them. > > I’m using MusicBrainz to do a fuzzy match and get the correct name. > > it’s not perfect, but works for 99% of files which is good enough for me! > > Cheers > Dave > > >> On 8 Jun 2022, at 18:23, Avi Gross via Python-list >> wrote: >> >> Dave, >> >> Your goal is to compare titles and there can be endless replacements needed >> if you allow the text to contain anything but ASCII. >> >> Have you considered stripping out things instead? I mean remove lots of >> stuff that is not ASCII in the first place and perhaps also remove lots of >> extra punctuation likesingle quotes or question marks or redundant white >> space and compare the sort of skeletons of the two? >> >> And even if that fails, could you have a measure of how different they are >> and tolerate if they were say off by one letter albeit "My desert" matching >> "My Dessert" might not be a valid match with one being a song about an arid >> environment and the other about food you don't need! >> >> Your seemingly simple need can expand into a fairly complex project. There >> may be many ideas on how to deal with it but not anything perfect enough to >> catch all cases as even a trained human may have to make decisions at times >> and not match what other humans do. We have examples like the TV show >> "NUMB3RS" that used a perfectly valid digit 3 to stand for an "E" but yet is >> often written when I look it up as NUMBERS. You have obvious cases where >> titles of songs may contain composite symbols like "œ" which will not >> compare to one where it is written out as "oe" so the idea of comparing is >> quite complex and the best you might do is heuristic. >> >> UNICODE has many symbols that are almost the same or even look the same or >> maybe in one font versus another. There are libraries of functions that >> allow some kinds of comparisons or conversions that you could look into but >> the gain for you may not be worth it. Nothing stops a person from naming a >> song any way they want and I speak many languages and often see a song >> re-titled in the local language and using the local alphabet mixed often >> with another. >> >> Your original question is perhaps now many questions, depending on what you >> choose. You started by wanting to know how to compare and it is moving on to >> how to delete parts or make substitutions or use regular expressions and it >> can get worse. You can, for example, take a string and identify the words >> within it and create a regular expression that inserts sequences between the >> words that match any zero or one or more non-word characters such as spaces, >> tabs, punctuation or non-ASCII, so that song titles with the same words in a >> sequence match no matter what is between them. The possibilities are endless >> but consider some of the techniques that are used by some programs that >> parse text and suggest alternate spellings or even programs like Google >> Translate that can take a sentence and then suggest you may mean a slightly >> altered sentence with one word changed to fit better. >> >> You need to decide what you want to deal with and what will be >> mis-classified by your program. Some of us have suggested folding the case >> of the words but that means asong about a dark skinned person in Poland >> called "Black Polish" would match a song about keeping your shoes dark with >> "black polish" so I keep repeating it is very hard or frankly impossible, to >> catch every case I can imagine and the many I can't! >> >> But the emphasis here is not your overall problem. It is about whether and >> how the computer language called python, and perhaps some add-on modules, >> can be used to solve each smaller need such as recognizing a pattern or >> replacing text. It can do quite a bit but
Re: How to replace characters in a string?
Hi, This is a tool I’m using on my own files to save me time. Basically or most of the tracks were imported with different version iTunes over the years. There are two problems: 1. File System characters are replaced (you can’t have ‘/‘ or ‘:’ in a file name). 2. Smart Quotes were added at some point, these need to replaced. 3. Other character based of name being of a non-english origin. If find others I’ll add them. I’m using MusicBrainz to do a fuzzy match and get the correct name. it’s not perfect, but works for 99% of files which is good enough for me! Cheers Dave > On 8 Jun 2022, at 18:23, Avi Gross via Python-list > wrote: > > Dave, > > Your goal is to compare titles and there can be endless replacements needed > if you allow the text to contain anything but ASCII. > > Have you considered stripping out things instead? I mean remove lots of stuff > that is not ASCII in the first place and perhaps also remove lots of extra > punctuation likesingle quotes or question marks or redundant white space and > compare the sort of skeletons of the two? > > And even if that fails, could you have a measure of how different they are > and tolerate if they were say off by one letter albeit "My desert" matching > "My Dessert" might not be a valid match with one being a song about an arid > environment and the other about food you don't need! > > Your seemingly simple need can expand into a fairly complex project. There > may be many ideas on how to deal with it but not anything perfect enough to > catch all cases as even a trained human may have to make decisions at times > and not match what other humans do. We have examples like the TV show > "NUMB3RS" that used a perfectly valid digit 3 to stand for an "E" but yet is > often written when I look it up as NUMBERS. You have obvious cases where > titles of songs may contain composite symbols like "œ" which will not compare > to one where it is written out as "oe" so the idea of comparing is quite > complex and the best you might do is heuristic. > > UNICODE has many symbols that are almost the same or even look the same or > maybe in one font versus another. There are libraries of functions that allow > some kinds of comparisons or conversions that you could look into but the > gain for you may not be worth it. Nothing stops a person from naming a song > any way they want and I speak many languages and often see a song re-titled > in the local language and using the local alphabet mixed often with another. > > Your original question is perhaps now many questions, depending on what you > choose. You started by wanting to know how to compare and it is moving on to > how to delete parts or make substitutions or use regular expressions and it > can get worse. You can, for example, take a string and identify the words > within it and create a regular expression that inserts sequences between the > words that match any zero or one or more non-word characters such as spaces, > tabs, punctuation or non-ASCII, so that song titles with the same words in a > sequence match no matter what is between them. The possibilities are endless > but consider some of the techniques that are used by some programs that parse > text and suggest alternate spellings or even programs like Google Translate > that can take a sentence and then suggest you may mean a slightly altered > sentence with one word changed to fit better. > > You need to decide what you want to deal with and what will be mis-classified > by your program. Some of us have suggested folding the case of the words but > that means asong about a dark skinned person in Poland called "Black Polish" > would match a song about keeping your shoes dark with "black polish" so I > keep repeating it is very hard or frankly impossible, to catch every case I > can imagine and the many I can't! > > But the emphasis here is not your overall problem. It is about whether and > how the computer language called python, and perhaps some add-on modules, can > be used to solve each smaller need such as recognizing a pattern or replacing > text. It can do quite a bit but only when the specification of the problem is > exact. > > > > > -Original Message- > From: Dave > To: python-list@python.org > Sent: Wed, Jun 8, 2022 5:09 am > Subject: Re: How to replace characters in a string? > > Hi, > > Thanks for this! > > So, is there a copy function/method that returns a MutableString like in > objective-C? I’ve solved this problems before in a number of languages like > Objective-C and AppleScript. > > Basically there is a set of common characters
Re: How to replace characters in a string?
Dave,
Your goal is to compare titles and there can be endless replacements needed if
you allow the text to contain anything but ASCII.
Have you considered stripping out things instead? I mean remove lots of stuff
that is not ASCII in the first place and perhaps also remove lots of extra
punctuation likesingle quotes or question marks or redundant white space and
compare the sort of skeletons of the two?
And even if that fails, could you have a measure of how different they are and
tolerate if they were say off by one letter albeit "My desert" matching "My
Dessert" might not be a valid match with one being a song about an arid
environment and the other about food you don't need!
Your seemingly simple need can expand into a fairly complex project. There may
be many ideas on how to deal with it but not anything perfect enough to catch
all cases as even a trained human may have to make decisions at times and not
match what other humans do. We have examples like the TV show "NUMB3RS" that
used a perfectly valid digit 3 to stand for an "E" but yet is often written
when I look it up as NUMBERS. You have obvious cases where titles of songs may
contain composite symbols like "œ" which will not compare to one where it is
written out as "oe" so the idea of comparing is quite complex and the best you
might do is heuristic.
UNICODE has many symbols that are almost the same or even look the same or
maybe in one font versus another. There are libraries of functions that allow
some kinds of comparisons or conversions that you could look into but the gain
for you may not be worth it. Nothing stops a person from naming a song any way
they want and I speak many languages and often see a song re-titled in the
local language and using the local alphabet mixed often with another.
Your original question is perhaps now many questions, depending on what you
choose. You started by wanting to know how to compare and it is moving on to
how to delete parts or make substitutions or use regular expressions and it can
get worse. You can, for example, take a string and identify the words within it
and create a regular expression that inserts sequences between the words that
match any zero or one or more non-word characters such as spaces, tabs,
punctuation or non-ASCII, so that song titles with the same words in a sequence
match no matter what is between them. The possibilities are endless but
consider some of the techniques that are used by some programs that parse text
and suggest alternate spellings or even programs like Google Translate that
can take a sentence and then suggest you may mean a slightly altered sentence
with one word changed to fit better.
You need to decide what you want to deal with and what will be mis-classified
by your program. Some of us have suggested folding the case of the words but
that means asong about a dark skinned person in Poland called "Black Polish"
would match a song about keeping your shoes dark with "black polish" so I keep
repeating it is very hard or frankly impossible, to catch every case I can
imagine and the many I can't!
But the emphasis here is not your overall problem. It is about whether and how
the computer language called python, and perhaps some add-on modules, can be
used to solve each smaller need such as recognizing a pattern or replacing
text. It can do quite a bit but only when the specification of the problem is
exact.
-Original Message-
From: Dave
To: python-list@python.org
Sent: Wed, Jun 8, 2022 5:09 am
Subject: Re: How to replace characters in a string?
Hi,
Thanks for this!
So, is there a copy function/method that returns a MutableString like in
objective-C? I’ve solved this problems before in a number of languages like
Objective-C and AppleScript.
Basically there is a set of common characters that need “normalizing” and I
have a method that replaces them in a string, so:
myString = [myString normalizeCharacters];
Would return a new string with all the “common” replacements applied.
Since the following gives an error :
myString = 'Hello'
myNewstring = myString.replace(myString,'e','a’)
TypeError: 'str' object cannot be interpreted as an integer
I can’t see of a way to do this in Python?
All the Best
Dave
> On 8 Jun 2022, at 10:14, Chris Angelico wrote:
>
> On Wed, 8 Jun 2022 at 18:12, Dave wrote:
>
>> I tried the but it doesn’t seem to work?
>> myCompareFile1 = ascii(myTitleName)
>> myCompareFile1.replace("\u2019", "'")
>
> Strings in Python are immutable. When you call ascii(), you get back a
> new string, but it's one that has actual backslashes and such in it.
> (You probably don't need this step, other than for debugging; check
> the string by printing out the ASCII version of it, but stick to the
> original for actual processing.) The s
Re: How to replace characters in a string?
On 2022-06-08, Dave wrote:
> I misunderstood how it worked, basically I’ve added this function:
>
> def filterCommonCharacters(theString):
> myNewString = theString.replace("\u2019", "'")
> return myNewString
> Which returns a new string replacing the common characters.
>
> This can easily be extended to include other characters as and when
> they come up by adding a line as so:
>
> myNewString = theString.replace("\u2014", “]” #just an example
>
> Which is what I was trying to achieve.
Here's a head-start on some characters you might want to translate,
mostly spaces, hyphens, quotation marks, and ligatures:
def unicode_translate(s):
return s.translate({
8192: ' ', 8193: ' ', 8194: ' ', 8195: ' ', 8196: ' ',
8197: ' ', 198: 'AE', 8199: ' ', 8200: ' ', 8201: ' ',
8202: ' ', 8203: '', 64258: 'fl', 8208: '-', 8209: '-',
8210: '-', 8211: '-', 8212: '-', 8722: '-', 8216: "'",
8217: "'", 8220: '"', 8221: '"', 64256: 'ff', 160: ' ',
64260: 'ffl', 8198: ' ', 230: 'ae', 12288: ' ', 173: '',
497: 'DZ', 498: 'Dz', 499: 'dz', 64259: 'ffi', 8230: '...',
64257: 'fi', 64262: 'st'})
If you want to go further then the Unidecode package might be helpful:
https://pypi.org/project/Unidecode/
--
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Re: How to replace characters in a string?
> On 8 Jun 2022, at 11:25, Dave wrote:
>
>myNewString = theString.replace("\u2014", “]” #just an example
Opps! Make that
myNewString = myNewString.replace("\u2014", “]” #just an example
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Re: How to replace characters in a string?
On 2022-06-08, Dave wrote: > Hi All, > > I decided to start a new thread as this really is a new subject. > > I've got two that appear to be identical, but fail to compare. After getting > the ascii encoding I see that they are indeed different, my question is how > can I replace the \u2019m with a regular single quote mark (or apostrophe)? You're not facing this alone: https://changelog.complete.org/archives/9938-the-python-unicode-mess Perhaps useful insights can be found at: https://realpython.com/python-encodings-guide/ > +++ -- You're rewriting parts of Quake in *Python*? MUAHAHAHA -- https://mail.python.org/mailman/listinfo/python-list
Re: How to replace characters in a string?
On Wed, Jun 8, 2022 at 1:11 AM Dave wrote: > I've got two that appear to be identical, but fail to compare. After > getting the ascii encoding I see that they are indeed different, my > question is how can I replace the \u2019m with a regular single quote mark > (or apostrophe)? > Perhaps try https://pypi.org/project/Unidecode/ ? -- https://mail.python.org/mailman/listinfo/python-list
Re: How to replace characters in a string?
Op 8/06/2022 om 11:25 schreef Dave:
Hi,
I misunderstood how it worked, basically I’ve added this function:
def filterCommonCharacters(theString):
myNewString = theString.replace("\u2019", "'")
return myNewString
Which returns a new string replacing the common characters.
This can easily be extended to include other characters as and when they come
up by adding a line as so:
myNewString = theString.replace("\u2014", “]” #just an example
Which is what I was trying to achieve.
When you have multiple replacements to do, there's an alternative for
multiple replace calls: you can use theString.translate() with a
translation map (which you can make yourself or make with
str.maketrans()) to do all the replacements at once. Example
# Make a map that translates every character from the first string
to the
# corresponding character in the second string
translation_map = str.maketrans("\u2019\u2014", "']")
# All the replacements in one go
myNewString = theString.translate(translation_map)
See:
- https://docs.python.org/3.10/library/stdtypes.html#str.maketrans
- https://docs.python.org/3.10/library/stdtypes.html#str.translate
--
"There is a theory which states that if ever anyone discovers exactly what the
Universe is for and why it is here, it will instantly disappear and be
replaced by something even more bizarre and inexplicable.
There is another theory which states that this has already happened."
-- Douglas Adams, The Restaurant at the End of the Universe
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Re: How to replace characters in a string?
Hi,
I misunderstood how it worked, basically I’ve added this function:
def filterCommonCharacters(theString):
myNewString = theString.replace("\u2019", "'")
return myNewString
Which returns a new string replacing the common characters.
This can easily be extended to include other characters as and when they come
up by adding a line as so:
myNewString = theString.replace("\u2014", “]” #just an example
Which is what I was trying to achieve.
All the Best
Dave
> On 8 Jun 2022, at 11:17, Chris Angelico wrote:
>
> On Wed, 8 Jun 2022 at 19:13, Dave wrote:
>>
>> Hi,
>>
>> Thanks for this!
>>
>> So, is there a copy function/method that returns a MutableString like in
>> objective-C? I’ve solved this problems before in a number of languages like
>> Objective-C and AppleScript.
>>
>> Basically there is a set of common characters that need “normalizing” and I
>> have a method that replaces them in a string, so:
>>
>> myString = [myString normalizeCharacters];
>>
>> Would return a new string with all the “common” replacements applied.
>>
>> Since the following gives an error :
>>
>> myString = 'Hello'
>> myNewstring = myString.replace(myString,'e','a’)
>>
>> TypeError: 'str' object cannot be interpreted as an integer
>>
>> I can’t see of a way to do this in Python?
>>
>
> Not sure why you're passing the string as an argument as well as using
> it as the object you're calling a method on. All you should need to do
> is:
>
> myString.replace('e', 'a')
>
> ChrisA
> --
> https://mail.python.org/mailman/listinfo/python-list
--
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Re: How to replace characters in a string?
On Wed, Jun 8, 2022 at 5:22 AM Karsten Hilbert wrote:
>
> Am Wed, Jun 08, 2022 at 11:09:05AM +0200 schrieb Dave:
>
> > myString = 'Hello'
> > myNewstring = myString.replace(myString,'e','a’)
>
> That won't work (last quote) but apart from that:
>
> myNewstring = myString.replace('e', 'a')
>
> Karsten
> --
> GPG 40BE 5B0E C98E 1713 AFA6 5BC0 3BEA AC80 7D4F C89B
> --
> https://mail.python.org/mailman/listinfo/python-list
Sorry if I'm not reading the nuances correctly, but it looks to me
that you failed to realize that string methods return results. They
don't change the string in place:
Python 3.8.10 (default, Mar 15 2022, 12:22:08)
[GCC 9.4.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> str1 = "\u2019string with starting smart quote"
>>> str1
'’string with starting smart quote'
>>> new_str = str1.replace("\u2019","'")
>>> str1
'’string with starting smart quote'
>>> new_str
"'string with starting smart quote"
>>> repr(str1)
"'’string with starting smart quote'"
>>> repr(new_str)
'"\'string with starting smart quote"'
>>>
As you can see, str1 doesn't change, but when you 'replace' on it, the
result you want is returned to new_str
--
Joel Goldstick
--
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Re: How to replace characters in a string?
Am Wed, Jun 08, 2022 at 11:09:05AM +0200 schrieb Dave:
> myString = 'Hello'
> myNewstring = myString.replace(myString,'e','a’)
That won't work (last quote) but apart from that:
myNewstring = myString.replace('e', 'a')
Karsten
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Re: How to replace characters in a string?
On Wed, 8 Jun 2022 at 19:13, Dave wrote:
>
> Hi,
>
> Thanks for this!
>
> So, is there a copy function/method that returns a MutableString like in
> objective-C? I’ve solved this problems before in a number of languages like
> Objective-C and AppleScript.
>
> Basically there is a set of common characters that need “normalizing” and I
> have a method that replaces them in a string, so:
>
> myString = [myString normalizeCharacters];
>
> Would return a new string with all the “common” replacements applied.
>
> Since the following gives an error :
>
> myString = 'Hello'
> myNewstring = myString.replace(myString,'e','a’)
>
> TypeError: 'str' object cannot be interpreted as an integer
>
> I can’t see of a way to do this in Python?
>
Not sure why you're passing the string as an argument as well as using
it as the object you're calling a method on. All you should need to do
is:
myString.replace('e', 'a')
ChrisA
--
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Re: How to replace characters in a string?
Hi,
Thanks for this!
So, is there a copy function/method that returns a MutableString like in
objective-C? I’ve solved this problems before in a number of languages like
Objective-C and AppleScript.
Basically there is a set of common characters that need “normalizing” and I
have a method that replaces them in a string, so:
myString = [myString normalizeCharacters];
Would return a new string with all the “common” replacements applied.
Since the following gives an error :
myString = 'Hello'
myNewstring = myString.replace(myString,'e','a’)
TypeError: 'str' object cannot be interpreted as an integer
I can’t see of a way to do this in Python?
All the Best
Dave
> On 8 Jun 2022, at 10:14, Chris Angelico wrote:
>
> On Wed, 8 Jun 2022 at 18:12, Dave wrote:
>
>> I tried the but it doesn’t seem to work?
>> myCompareFile1 = ascii(myTitleName)
>> myCompareFile1.replace("\u2019", "'")
>
> Strings in Python are immutable. When you call ascii(), you get back a
> new string, but it's one that has actual backslashes and such in it.
> (You probably don't need this step, other than for debugging; check
> the string by printing out the ASCII version of it, but stick to the
> original for actual processing.) The same is true of the replace()
> method; it doesn't change the string, it returns a new string.
>
word = "spam"
print(word.replace("sp", "h"))
> ham
print(word)
> spam
>
> ChrisA
> --
> https://mail.python.org/mailman/listinfo/python-list
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Re: How to replace characters in a string?
On Wed, 8 Jun 2022 at 18:20, Dave wrote:
>
> PS
>
> I’ve also tried:
> myCompareFile1 = myTitleName
> myCompareFile1.replace("\u2019", "'")
> myCompareFile2 = myCompareFileName
> myCompareFile2.replace("\u2019", "'")
> Which also doesn’t work, the replace itself work but it still fails the
> compare?
>
This is a great time to start exploring what actually happens when you
do "myCompareFile2 = myCompareFileName". I recommend doing some poking
around with strings (which are immutable), lists (which aren't), and
tuples (which aren't, but can contain mutable children).
ChrisA
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Re: How to replace characters in a string?
PS
I’ve also tried:
myCompareFile1 = myTitleName
myCompareFile1.replace("\u2019", "'")
myCompareFile2 = myCompareFileName
myCompareFile2.replace("\u2019", "'")
Which also doesn’t work, the replace itself work but it still fails the compare?
> On 8 Jun 2022, at 10:08, Dave wrote:
>
> Hi All,
>
> I decided to start a new thread as this really is a new subject.
>
> I've got two that appear to be identical, but fail to compare. After getting
> the ascii encoding I see that they are indeed different, my question is how
> can I replace the \u2019m with a regular single quote mark (or apostrophe)?
>
> myCompareFile1 = ascii(myTitleName)
> myCompareFile2 = ascii(myCompareFileName)
> myCompareFile1: 'I\u2019m Mandy Fly Me'
> myCompareFile2: "I'm Mandy Fly Me"
>
> I tried the but it doesn’t seem to work?
> myCompareFile1 = ascii(myTitleName)
> myCompareFile1.replace("\u2019", "'")
> myCompareFile2 = ascii(myCompareFileName)
> myCompareFile2.replace("\u2019", "'")
> if myCompareFile1 != myCompareFile2:
>print('myCompareFile1:',myCompareFile1)
>print('myCompareFile2:',myCompareFile2)
>myLength1 = len(myCompareFileName)
>myLength2 = len(myTitleName)
>print('File Name Mismatch - Artist: [' + myArtistName + '] Album: ['+
> myAlbumName + '] Track: [' + myTitleName + '] File: [' + myCompareFileName
> + ']')
>if (myLength1 == myLength2):
>print('lengths match: ',myLength1)
>else:
>print('lengths mismatch: ',myLength1,' ',myLength2)
>print(' ')
> Console:
>
> myCompareFile1: 'I\u2019m Mandy Fly Me'
> myCompareFile2: "I'm Mandy Fly Me"
>
> So it looks like the replace isn’t doing anything?
>
> I’m an experienced developer but learning Python.
>
> All the Best
> Dave
>
>
>
>
>
> --
> https://mail.python.org/mailman/listinfo/python-list
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Re: How to replace characters in a string?
On Wed, 8 Jun 2022 at 18:12, Dave wrote:
> I tried the but it doesn’t seem to work?
> myCompareFile1 = ascii(myTitleName)
> myCompareFile1.replace("\u2019", "'")
Strings in Python are immutable. When you call ascii(), you get back a
new string, but it's one that has actual backslashes and such in it.
(You probably don't need this step, other than for debugging; check
the string by printing out the ASCII version of it, but stick to the
original for actual processing.) The same is true of the replace()
method; it doesn't change the string, it returns a new string.
>>> word = "spam"
>>> print(word.replace("sp", "h"))
ham
>>> print(word)
spam
ChrisA
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How to replace characters in a string?
Hi All,
I decided to start a new thread as this really is a new subject.
I've got two that appear to be identical, but fail to compare. After getting
the ascii encoding I see that they are indeed different, my question is how can
I replace the \u2019m with a regular single quote mark (or apostrophe)?
myCompareFile1 = ascii(myTitleName)
myCompareFile2 = ascii(myCompareFileName)
myCompareFile1: 'I\u2019m Mandy Fly Me'
myCompareFile2: "I'm Mandy Fly Me"
I tried the but it doesn’t seem to work?
myCompareFile1 = ascii(myTitleName)
myCompareFile1.replace("\u2019", "'")
myCompareFile2 = ascii(myCompareFileName)
myCompareFile2.replace("\u2019", "'")
if myCompareFile1 != myCompareFile2:
print('myCompareFile1:',myCompareFile1)
print('myCompareFile2:',myCompareFile2)
myLength1 = len(myCompareFileName)
myLength2 = len(myTitleName)
print('File Name Mismatch - Artist: [' + myArtistName + '] Album: ['+
myAlbumName + '] Track: [' + myTitleName + '] File: [' + myCompareFileName +
']')
if (myLength1 == myLength2):
print('lengths match: ',myLength1)
else:
print('lengths mismatch: ',myLength1,' ',myLength2)
print(' ')
Console:
myCompareFile1: 'I\u2019m Mandy Fly Me'
myCompareFile2: "I'm Mandy Fly Me"
So it looks like the replace isn’t doing anything?
I’m an experienced developer but learning Python.
All the Best
Dave
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