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Say I have an arbitrary string like
"abc 123 def 456"
How would I take out the integers so that it can print "123456" without using regex?
for your specific question, you can just use .isdigit()
s = "abc 123 def 456"
for ch in s:
if ch.isdigit():
print(ch, end='')
print()
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I just want to know how can i check it is number or not in import sys situation.
and want to know Why i didn't get output "Hello" with code A.isalpha()
The method A.isalpha() returns a boolean value True or False not a string "True", you compare booleans like this
if A.isalpha() is True:
print("hello")
But as a if expects a boolean statement, the return value from isalpha is already good
if A.isalpha():
print("hello")
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In python, I wrote a program to compare two strings.
The coedes are below
d = data.iloc[0]
cmpdate = d['quant_date']
print(cmpdate)
if (cmpdate=='2010-03-18'):
print("=================", dt)
else:
print("xxxxxxxxxxxxx", cmpdate)
the results are
2010-03-18
xxxxxxxxxxxxx 2010-03-18
tow strings are exactly same.
what is the problem?
TIA
Make sure you convert both of the dates to datetime format
and check the result
use to_datetime() function
This works fine
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I have strings of this form:
FPLBX(2x3)ZE(53x13)(4x7)ZGQO
I want to find the blocks in parenthesis but only when they're not preceded by another group.
The other way around works perfectly fine but I can't make it work with preceding.
current regex:
(\(\d*x\d*\))(?<!\))
You simply need to put the so-called negative lookbehind assertion, i.e. the (?<!\))-part, in front of your search re:
>>> import re
>>> txt = "FPLBX(2x3)ZE(53x13)(4x7)ZGQO"
>>> re.findall(r"(?<!\))(\(\d*x\d*\))", txt)
['(2x3)', '(53x13)']
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I want to create a new text file and cut the string in each line.
for line in rescut:
rescutfinal.write("pretext_" + line.rsplit('delimiter', 1)[-1] + "1\t0\t10\tLinear\t0\t0")
But my code doesn't work as expected. My Outpout contains a new line after the "line.rsplit"-string
pretext_linesplitstring
string after linesplitstring pretext_linesplitstring
string after linesplitstring pretext_linesplitstring
string after linesplitstring pretext_linesplitstring"
How do I get rid of the "\n" after the linesplitstring?
you can use str.rstrip() or str.strip():
line.rstrip().rsplit('delimiter', 1)[-1]
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I am trying to match a regex from an email. If the e-mail says "need update on SRT1000" the regex needs to match. I have my code as below, but it is not working. Can someone look at this and let me know what is wrong here?
def status_update_regex(email):
email = email.lower()
need_sr_update_regex = re.compile('(looking|want|need|seek|seeking|request|requesting)([^/./!/?/,/"]{0,10})(status|update)(^.{0,6})(^srt[0-9]{4})')
if need_sr_update_regex.search(email) != None:
return 1
else:
return 0
You didn't put whitespace \s between words.
You don't have the on string
(looking|want|need|seek|seeking|request|requesting)([\s^.!?,"]{0,10})(status|update)([\s^.]{0,6})(on)([\s^.]{0,6})(srt[0-9]{4})
The best tip I can give to anyone attempting regex matching is to test their solution using https://rubular.com/
Don't put the ^ in the groups, it's trying to match the beginning. Also the extra / are unnecessary.
'(looking|want|need|seek|seeking|request|requesting)([^/.!?,"]{0,10}(status|update)(.{0,6})(srt[0-9]{4})'