Mixing
python regex search for elimitation
i have the following case
import re
target_regex = '^(?!P-[5678]).*'
pattern = re.compile(target_regex, re.IGNORECASE)
mylists=['p-1.1', 'P-5']
target_object_is_found = pattern.findall(''.join(mylists))
print "target_object_is_found:", target_object_is_found
this will give
target_object_is_found: ['P-1.1P-5']
but from my regex what i need is P-1.1 alone eliminating P-5
regex python-2.7
asked Nov 19 '18 at 13:53
Anoop Ajay
235
add a comment |
i have the following case
import re
target_regex = '^(?!P-[5678]).*'
pattern = re.compile(target_regex, re.IGNORECASE)
mylists=['p-1.1', 'P-5']
target_object_is_found = pattern.findall(''.join(mylists))
print "target_object_is_found:", target_object_is_found
this will give
target_object_is_found: ['P-1.1P-5']
but from my regex what i need is P-1.1 alone eliminating P-5
regex python-2.7
asked Nov 19 '18 at 13:53
Anoop Ajay
235
add a comment |
i have the following case
import re
target_regex = '^(?!P-[5678]).*'
pattern = re.compile(target_regex, re.IGNORECASE)
mylists=['p-1.1', 'P-5']
target_object_is_found = pattern.findall(''.join(mylists))
print "target_object_is_found:", target_object_is_found
this will give
target_object_is_found: ['P-1.1P-5']
but from my regex what i need is P-1.1 alone eliminating P-5
regex python-2.7
asked Nov 19 '18 at 13:53
Anoop Ajay
235
i have the following case
import re
target_regex = '^(?!P-[5678]).*'
pattern = re.compile(target_regex, re.IGNORECASE)
mylists=['p-1.1', 'P-5']
target_object_is_found = pattern.findall(''.join(mylists))
print "target_object_is_found:", target_object_is_found
this will give
target_object_is_found: ['P-1.1P-5']
but from my regex what i need is P-1.1 alone eliminating P-5
regex python-2.7
regex python-2.7
asked Nov 19 '18 at 13:53
Anoop Ajay
235
asked Nov 19 '18 at 13:53
Anoop Ajay
235
asked Nov 19 '18 at 13:53
Anoop Ajay
235
asked Nov 19 '18 at 13:53
Anoop Ajay
235
asked Nov 19 '18 at 13:53
Anoop Ajay
235
235
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
You joined the items in mylist and P-5 is no longer at the start of the string.
You may use
import re
target_regex = 'P-[5-8]'
pattern = re.compile(target_regex, re.IGNORECASE)
mylists=['p-1.1', 'P-5']
target_object_is_found = [x for x in mylists if not pattern.match(x)]
print("target_object_is_found: {}".format(target_object_is_found))
# => target_object_is_found: ['p-1.1']
See the Python demo.
Here, the P-[5-8] pattern is compiled with re.IGNORECASE flag and is used to check each item inside mylist (see the [...] list comprehension) with the regex_objext.match method that looks for a match at the start of string only. The match result is reversed, see not after if.
So, all items are returned that do not start with (?i)P-[5-8] pattern.
answered Nov 19 '18 at 13:57
Wiktor Stribiżew
308k16126202
add a comment |
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1 Answer
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active
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1 Answer
1
active
oldest
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oldest
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oldest
votes
You joined the items in mylist and P-5 is no longer at the start of the string.
You may use
import re
target_regex = 'P-[5-8]'
pattern = re.compile(target_regex, re.IGNORECASE)
mylists=['p-1.1', 'P-5']
target_object_is_found = [x for x in mylists if not pattern.match(x)]
print("target_object_is_found: {}".format(target_object_is_found))
# => target_object_is_found: ['p-1.1']
See the Python demo.
Here, the P-[5-8] pattern is compiled with re.IGNORECASE flag and is used to check each item inside mylist (see the [...] list comprehension) with the regex_objext.match method that looks for a match at the start of string only. The match result is reversed, see not after if.
So, all items are returned that do not start with (?i)P-[5-8] pattern.
answered Nov 19 '18 at 13:57
Wiktor Stribiżew
308k16126202
add a comment |
You joined the items in mylist and P-5 is no longer at the start of the string.
You may use
import re
target_regex = 'P-[5-8]'
pattern = re.compile(target_regex, re.IGNORECASE)
mylists=['p-1.1', 'P-5']
target_object_is_found = [x for x in mylists if not pattern.match(x)]
print("target_object_is_found: {}".format(target_object_is_found))
# => target_object_is_found: ['p-1.1']
See the Python demo.
Here, the P-[5-8] pattern is compiled with re.IGNORECASE flag and is used to check each item inside mylist (see the [...] list comprehension) with the regex_objext.match method that looks for a match at the start of string only. The match result is reversed, see not after if.
So, all items are returned that do not start with (?i)P-[5-8] pattern.
answered Nov 19 '18 at 13:57
Wiktor Stribiżew
308k16126202
add a comment |
You joined the items in mylist and P-5 is no longer at the start of the string.
You may use
import re
target_regex = 'P-[5-8]'
pattern = re.compile(target_regex, re.IGNORECASE)
mylists=['p-1.1', 'P-5']
target_object_is_found = [x for x in mylists if not pattern.match(x)]
print("target_object_is_found: {}".format(target_object_is_found))
# => target_object_is_found: ['p-1.1']
See the Python demo.
Here, the P-[5-8] pattern is compiled with re.IGNORECASE flag and is used to check each item inside mylist (see the [...] list comprehension) with the regex_objext.match method that looks for a match at the start of string only. The match result is reversed, see not after if.
So, all items are returned that do not start with (?i)P-[5-8] pattern.
answered Nov 19 '18 at 13:57
Wiktor Stribiżew
308k16126202
You joined the items in mylist and P-5 is no longer at the start of the string.
You may use
import re
target_regex = 'P-[5-8]'
pattern = re.compile(target_regex, re.IGNORECASE)
mylists=['p-1.1', 'P-5']
target_object_is_found = [x for x in mylists if not pattern.match(x)]
print("target_object_is_found: {}".format(target_object_is_found))
# => target_object_is_found: ['p-1.1']
See the Python demo.
Here, the P-[5-8] pattern is compiled with re.IGNORECASE flag and is used to check each item inside mylist (see the [...] list comprehension) with the regex_objext.match method that looks for a match at the start of string only. The match result is reversed, see not after if.
So, all items are returned that do not start with (?i)P-[5-8] pattern.
answered Nov 19 '18 at 13:57
Wiktor Stribiżew
308k16126202
answered Nov 19 '18 at 13:57
Wiktor Stribiżew
308k16126202
answered Nov 19 '18 at 13:57
Wiktor Stribiżew
308k16126202
answered Nov 19 '18 at 13:57
Wiktor Stribiżew
308k16126202
308k16126202
add a comment |
add a comment |
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