logo
down
shadow

python regular expression with "OR" and $ end of line


python regular expression with "OR" and $ end of line

By : Denis Patel
Date : November 21 2020, 04:03 PM
To fix the issue you can do I have 3 different types of string in which I'm trying to match a pattern: Patterns:
code :
strings = [
"abcdedf_abc_abc_XS123456789_1234567",
"abcdedf_abc_abc_AB_1234567_2014/03/17",
"abcdef_abcdf_abc_xyz_12354AB12_1234567"
]

import re
pattern = re.compile(r"(?<=_)\d+(?=_|$)")
for item in strings:
    print pattern.search(item).group()
1234567
1234567
1234567


Share : facebook icon twitter icon
Why does regular expression not match without boundary matcher "Beginning of line"?

Why does regular expression not match without boundary matcher "Beginning of line"?


By : Keyur Patel
Date : March 29 2020, 07:55 AM
will be helpful for those in need In Java, matches() validates the entire string. Your input probably has line breaks in them (which don't get matched by .+).
Try this instead:
code :
Pattern p = Pattern.compile(".+to\\s+date\\s*?:\\s*?([0-9]{2}[\\./][0-9]{2}[\\./][0-9]{2,4}).+", Pattern.CASE_INSENSITIVE);
Matcher m = p.matcher("... \n From Date :01/11/2011 To Date :30/11/2011;;;;;;;;;;;;; \n ...");

System.out.println(m.matches()); // prints false

if(m.find()) {
  System.out.println(m.group(1)); // prints 30/11/2011
}
Pattern.compile("to\\s+date\\s*?:\\s*?([0-9]{2}[./][0-9]{2}[./][0-9]{2,4})", Pattern.CASE_INSENSITIVE);
Django/Python Getting "error_message" : "multiple repeats" on using regular expression

Django/Python Getting "error_message" : "multiple repeats" on using regular expression


By : deepu
Date : March 29 2020, 07:55 AM
may help you . I don't think the problem is with the regex, but with your word list. It's likely the list contains characters which are interpreted as regex special characters. This works for me:
code :
#!/usr/bin/python
import re

def replacement(match):
    return "*" * len(match.group(0))

def censored_string(dirty):
    clean = str(dirty)
    wordList = ["fuck", "shit", "damn"]

    for swear_word in wordList:
        target_word = swear_word.strip()
        result = re.sub("(?i)\\b(("+target_word+"){1,})(s{0,1})\\b",replacement, clean)
        clean = result
    return clean

print censored_string("god damn i love bananas and fucking fuckfuck shits")
# god **** i love bananas and fucking ******** *****
python regular expression: re.findall(r"(do|re|mi)+","mimi rere midore")

python regular expression: re.findall(r"(do|re|mi)+","mimi rere midore")


By : arun gangawat Gangaw
Date : March 29 2020, 07:55 AM
wish help you to fix your issue The difference is in the capturing group. With a capturing froup, findall() returns only what was captured. Without a capturing group, the whole match is returned.
In your first example, the group only captures the two characters, repeated or not. In the second example, the whole match includes any repetitions.
code :
r'Some example text: ((?:do|re|me)+)'
python regular expression: script to change "frame_20" to "frame_0020"

python regular expression: script to change "frame_20" to "frame_0020"


By : Sam
Date : March 29 2020, 07:55 AM
wish help you to fix your issue So I have a list of filenames. They are called: , You could use a regular expression as follows:
code :
import re

file_names = ["fgmask_frame_20.jpg", "fgmask_frame_40.jpg", "fgmask_frame_2000.jpg"]
file_names = [re.sub(r'(.*?_)(\d+)(\.jpg)', lambda x: '{}{:04}{}'.format(x.group(1), int(x.group(2)), x.group(3)), file_name) for file_name in file_names]
print file_names
['fgmask_frame_0020.jpg', 'fgmask_frame_0040.jpg', 'fgmask_frame_2000.jpg']
How to write regular expression of head of line, "^", and end of line, "$" in []?

How to write regular expression of head of line, "^", and end of line, "$" in []?


By : PeterPeter
Date : March 29 2020, 07:55 AM
around this issue You can try alternation with () instead of [] (class of characters or character sets)
code :
grep -q -E "(:|^)\$TARGET_PATH($|:)
Related Posts Related Posts :
  • Filtering from data
  • Where is the problem about selenium with python?
  • ansible custom filter fails when importing python library
  • How to assign the label of one column to the new one based on group maximum in pandas
  • What is the best approach for isolating a single area of similar colour?
  • Creating multiple clients for topics
  • Why is my 'for loop', despite iterating over all keys, only acting on the last one?
  • Can someone tell me what's wrong, when I run it the browsers says "This site can’t be reached"
  • Error in setting up mitmproxy on alpine 3.9
  • From traditional loop to list comprehension
  • Django celery unregistered task | relative imports
  • How to add elements in a multi dimensional array
  • Async await with sqs receive messages not working properly
  • What is definition of 'NAME' in Python grammar
  • Easy method to move rows from df to another with coditions?
  • Changing the size of only a single plot in matplotlib, without altering figure parameters
  • Fastest way to use Vision API on 10,000+ images with python
  • How to install nvidia apex on Google Colab
  • Random numbers Continuous in python
  • Fetching data after a certain time interval(10 sec) from a continuously increasing database like mysql using flask
  • Using VLOOKUP with merge in Python
  • Calculate geographical distance between 5 cities with all the possible combinations of each city
  • How to filter a pandas dataframe using multiple partial strings?
  • Pygame- make bullet shoot toward cursor direction
  • Create SEQUENCE based dictionary from list
  • How to fix broken link from Django MEDIA_ROOT?
  • How can I display the current time left in a timer in a label?
  • Compute number of occurance of each value and Sum another column in Pandas
  • How to separate the prefix in words that are 'di'?
  • Handling network errors from an external API across an application
  • Want a pandas Series of Trips Completed to count(Request) ratio for each hour as index for the given dataframe
  • Access dict keys and list elements by same index to loop over and assign values
  • Find rows from the same dataframe based on condition
  • Read only specific part first two lines from text file in python
  • Python How to convert string to dataframe?
  • How to fix this my error code program? I use Python 3.6
  • Is there a way of getting this string down to 3 words?
  • Large difference between overall F Score for a custom Spacy NER model and Individual Entity F Score
  • Drop rows where timestamps are older than subsequent row
  • Implement a bottle spin
  • Unable to convert widows epoch time to normal date time
  • Values from a XML file
  • PyAudio readframes not ending when wav file completes
  • Could not load the module
  • How to change datetime.datetime(2012, 1, 1, 0, 0) to 1/1/2012 in Python?
  • How to create ASN.1 Sequence without NamedType?
  • How to locate specific sequences of words in a sentence efficiently
  • How can I generate a multi-step process in Django without changing pages (w/out a new request)?
  • Why does this list comprehension only "sometimes" work?
  • send html report with row collapsed
  • How to define a type hint to a argument (the argument's value is a class, all expected value is a subclass of a certain
  • How do I send a styled pandas DataFrame by e-mail without losing the format?
  • How to view/average a groupby dataframe when the data is a string?
  • Django 2.2 staticfiles do not work in development
  • Flag to enable/disable numba JIT compilation?
  • Trying to split byte in a byte array into two nibbles
  • Error in Query - missing FROM-clause entry for table - SQL
  • Reading double c structures of Dll with Ctypes in Python
  • Autofill missing row in database based on missing time range
  • Get the max of a nested dictionary
  • shadow
    Privacy Policy - Terms - Contact Us © festivalmusicasacra.org