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Comparison with Python


Comparison with Python

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Comparison with Python
Tag : python , By : wraith
Date : December 05 2020, 12:24 PM


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string/char comparison vs. bitwise comparison in python


Tag : python , By : Matt Leacock
Date : March 29 2020, 07:55 AM
this will help
Will converting characters to respective binary, and implementing minor neural networks using bitwise comparisons save processing time and memory consumption, as compared to simple character comparison?

Need String Comparison 's solution for Partial String Comparison in Python


Tag : python , By : Santhanam
Date : March 29 2020, 07:55 AM
hop of those help? Since you want to compare only stem or "root word" of a given word, I suggest using some stemming algorithm. Stemming algorithms attempt to automatically remove suffixes (and in some cases prefixes) in order to find the "root word" or stem of a given word. This is useful in various natural language processing scenarios, such as search. Luckily there is a python package for stemming. You can download it from here.
Next you want to compare string without stop-words (a,an,the,from, etc.). So you need to filter these words before comparing strings. You can get a list of stop-words from internet or you can use nltk package to import stop-words list. You can get nltk from here
['i', 'me', 'my', 'myself', 'we', 'our', 'ours', 'ourselves', 'you', 'your', 'yours',
 'yourself', 'yourselves', 'he', 'him', 'his', 'himself', 'she', 'her', 'hers', 'herself',
 'it', 'its', 'itself', 'they', 'them', 'their', 'theirs', 'themselves', 'what', 'which',
 'who', 'whom', 'this', 'that', 'these', 'those', 'am', 'is', 'are', 'was', 'were', 'be',
 'been', 'being', 'have', 'has', 'had', 'having', 'do', 'does', 'did', 'doing', 'a', 'an',
 'the', 'and', 'but', 'if', 'or', 'because', 'as', 'until', 'while', 'of', 'at', 'by', 'for',
 'with', 'about', 'against', 'between', 'into', 'through', 'during', 'before', 'after',
 'above', 'below', 'to', 'from', 'up', 'down', 'in', 'out', 'on', 'off', 'over', 'under',
 'again', 'further', 'then', 'once', 'here', 'there', 'when', 'where', 'why', 'how', 'all',
 'any', 'both', 'each', 'few', 'more', 'most', 'other', 'some', 'such', 'no', 'nor', 'not',
 'only', 'own', 'same', 'so', 'than', 'too', 'very', 's', 't', 'can', 'will', 'just', 'don',
 'should', 'now']
from stemming.porter2 import stem
from nltk.corpus import stopwords
stopwords_ =  stopwords.words('english')
def addString(x):
   flag = True
   y = [stem(j).lower() for j in x.split() if j.lower() not in stopwords_]
   for i in section:
      i = [stem(j).lower() for j in i.split() if j.lower() not in stopwords_]
      if y==i:
         flag = False
         break
   if flag:
      section.append(x)
      print "\tNew Section Added"
>>> from stemming.porter2 import stem
>>> from nltk.corpus import stopwords
>>> stopwords_ =  stopwords.words('english')
>>> 
>>> def addString(x):
...    flag = True
...    y = [stem(j).lower() for j in x.split() if j.lower() not in stopwords_]
...    for i in section:
...       i = [stem(j).lower() for j in i.split() if j.lower() not in stopwords_]
...       if y==i:
...          flag = False
...          break
...    if flag:
...       section.append(x)
...       print "\tNew Section Added"
... 
>>> section = [ "Activity (Last 3 Days)", "Activity (Last 7 days)", "Executable running from disk", "Actions from File"]  # initial Section list
>>> addString("Activity (Last 30 Days)")
    New Section Added
>>> addString("Executables running from disk")
>>> addString("Actions from a file")
>>> section
['Activity (Last 3 Days)', 'Activity (Last 7 days)', 'Executable running from disk', 'Actions from File', 'Activity (Last 30 Days)']  # Final section list

Comparison operators vs “rich comparison” methods in Python


Tag : python , By : alexmajy
Date : March 29 2020, 07:55 AM
With these it helps This is relying on the __cmp__ magic method, which is what the rich-comparison operators were meant to replace:
>>> dict1 = {1:1}
>>> dict2 = {2:2}
>>> dict1.__cmp__
<method-wrapper '__cmp__' of dict object at 0x10f075398>
>>> dict1.__cmp__(dict2)
-1

String with regex comparison in python fails in python


Tag : python , By : vferman
Date : March 29 2020, 07:55 AM
To fix this issue You need to escape the brackets, since otherwise these are seen as "grouping directives" by the regex engine:
str1 = r"Expecting property name: line \d+ column \d+ \(char \d+\)"
#                                                     ^         ^

Python set comparison


Tag : python , By : Jorge Palacio
Date : March 29 2020, 07:55 AM
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