Human word reader

[timo verbeek]

I'm planning to create a human word program
A human inputs a string
"Give me the weather for London please."
Then I will strip the string.
"weather for london"
Then I get the useful information.
what:"weather" where:"london"
After that I use the info.

I need help with getting the useful information how do I get the place
if I don't now how long the string is?

 

[timo verbeek]

Place starts always with for

 

[David Zaslavsky]

Here's my take on that:

loc = re.search('for\s+(\w+)', string).group(1)

Not much different, really, but it does allow for multiple spaces (\s+) as
well as requiring at least one character in the word (\w+), and I use a
matching group to extract the location directly instead of splitting the
string "by hand".

David

Place starts always with for

Okay, much better.

Given that constraint, it looks like regular expression can do the job. I'm
not very experienced with regex, though.

\w* matches a whole word composed of letters and numbers by default.

'for London'

result.group().split()[1]

'London'

Cheers,
Xav

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[Dennis Lee Bieber]

I'm planning to create a human word program
A human inputs a string
"Give me the weather for London please."
Then I will strip the string.
"weather for london"
Then I get the useful information.
what:"weather" where:"london"
After that I use the info.

I need help with getting the useful information how do I get the place
if I don't now how long the string is?

And is it supposed to handle

for london give the weather to me
for the london weather give me

....

Do a search on "natural language processing"... You are at the level
of algorithms, and algorithms are not limited to Python...

 

[CM]

I need help with getting the useful information how do I get the place

        And is it supposed to handle

        for london give the weather to me
        for the london weather give me

...

        Do a search on "natural language processing"... You are at the level
of algorithms, and algorithms are not limited to Python...

Yes, this is a major field of research. For basic purposes in Python,
maybe just try to trigger off the presence of the word "weather" and
the presence of a particular city's name. It will not work if the
user tries to trick it ("Don't give me the weather in London"), but,
like a search engine, it will more or less give what people want for
common queries. Like:

list_of_cities = ['london', 'moscow', 'new york', 'paris']
user_string = 'Give me the weather for London please.'
user_word_list = user_string.split() #if they put a comma after city,
this will be a problem
for word in user_word_list:
period_free_word = word.rstrip('.') #strips trailing period for
final word, in case there
lowered_word = period_free_word.lower() #makes it case
insensitive
if lowered_word in list_of_cities:
print 'The city is: ' + lowered_word
DoSomething(lowered_word) #go and get the weather data for
that city I guess

Che

 

[CM]

        And is it supposed to handle

        for london give the weather to me
        for the london weather give me

        Do a search on "natural language processing"... You are at the level
of algorithms, and algorithms are not limited to Python...

Yes, this is a major field of research.  For basic purposes in Python,
maybe just try to trigger off the presence of the word "weather" and
the presence of a particular city's name.  It will not work if the
user tries to trick it ("Don't give me the weather in London"), but,
like a search engine, it will more or less give what people want for
common queries.  Like:

list_of_cities = ['london', 'moscow', 'new york', 'paris']
user_string = 'Give me the weather for London please.'
user_word_list = user_string.split()  #if they put a comma after city,
this will be a problem
for word in user_word_list:
    period_free_word = word.rstrip('.') #strips trailing period for
final word, in case there
    lowered_word = period_free_word.lower()  #makes it case
insensitive
    if lowered_word in list_of_cities:
         print 'The city is: ' + lowered_word
         DoSomething(lowered_word)  #go and get the weather data for
that city I guess

Che

I forgot to split on two delimiters (a space and a comma). See here:
http://mail.python.org/pipermail/tutor/2008-August/063570.html

Anyway, you get the idea...

 

[Gregory Ewing]

And is it supposed to handle

for london give the weather to me
for the london weather give me

Or

Where can I buy some new weather boarding for my
house in London?