Apply list of regex pattern on list python
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I have data frame in which txt column contains a list. I want to clean the txt column using function clean_text().
data = {'value':['abc.txt', 'cda.txt'], 'txt':['[''2019/01/31-11:56:23.288258 1886 7F0ED4CDC704 asfasnfs: remove datepart'']',
'[''2019/02/01-11:56:23.288258 1886 7F0ED4CDC704 asfasnfs: remove datepart'']']}
df = pandas.DataFrame(data=data)
def clean_text(text):
"""
:param text: it is the plain text
:return: cleaned text
"""
patterns = [r"^{53}",
r"[A-Za-z]+[d]+[w]*|[d]+[A-Za-z]+[w]*",
r"[-=/':,?${}[]-_()>.~" ";+]"]
for p in patterns:
text = re.sub(p, '', text)
return text
My Solution:
df['txt'] = df['txt'].apply(lambda x: clean_text(x))
But I am getting below error:
Error
sre_constants.error: nothing to repeat at position 1
python regex list
edited Feb 10 at 22:42
coldspeed
141k25157245
asked Feb 10 at 19:34
user15051990user15051990
710717
add a comment |
I have data frame in which txt column contains a list. I want to clean the txt column using function clean_text().
data = {'value':['abc.txt', 'cda.txt'], 'txt':['[''2019/01/31-11:56:23.288258 1886 7F0ED4CDC704 asfasnfs: remove datepart'']',
'[''2019/02/01-11:56:23.288258 1886 7F0ED4CDC704 asfasnfs: remove datepart'']']}
df = pandas.DataFrame(data=data)
def clean_text(text):
"""
:param text: it is the plain text
:return: cleaned text
"""
patterns = [r"^{53}",
r"[A-Za-z]+[d]+[w]*|[d]+[A-Za-z]+[w]*",
r"[-=/':,?${}[]-_()>.~" ";+]"]
for p in patterns:
text = re.sub(p, '', text)
return text
My Solution:
df['txt'] = df['txt'].apply(lambda x: clean_text(x))
But I am getting below error:
Error
sre_constants.error: nothing to repeat at position 1
python regex list
edited Feb 10 at 22:42
coldspeed
141k25157245
asked Feb 10 at 19:34
user15051990user15051990
710717
Possible duplicate of Regex sre_constants.error: bad character range
– sophros
Feb 10 at 19:59
@sophros, this question is different.
– user15051990
Feb 10 at 20:07
in what way it is different? The error is the same.
– sophros
Feb 10 at 20:12
add a comment |
I have data frame in which txt column contains a list. I want to clean the txt column using function clean_text().
data = {'value':['abc.txt', 'cda.txt'], 'txt':['[''2019/01/31-11:56:23.288258 1886 7F0ED4CDC704 asfasnfs: remove datepart'']',
'[''2019/02/01-11:56:23.288258 1886 7F0ED4CDC704 asfasnfs: remove datepart'']']}
df = pandas.DataFrame(data=data)
def clean_text(text):
"""
:param text: it is the plain text
:return: cleaned text
"""
patterns = [r"^{53}",
r"[A-Za-z]+[d]+[w]*|[d]+[A-Za-z]+[w]*",
r"[-=/':,?${}[]-_()>.~" ";+]"]
for p in patterns:
text = re.sub(p, '', text)
return text
My Solution:
df['txt'] = df['txt'].apply(lambda x: clean_text(x))
But I am getting below error:
Error
sre_constants.error: nothing to repeat at position 1
python regex list
edited Feb 10 at 22:42
coldspeed
141k25157245
asked Feb 10 at 19:34
user15051990user15051990
710717
I have data frame in which txt column contains a list. I want to clean the txt column using function clean_text().
data = {'value':['abc.txt', 'cda.txt'], 'txt':['[''2019/01/31-11:56:23.288258 1886 7F0ED4CDC704 asfasnfs: remove datepart'']',
'[''2019/02/01-11:56:23.288258 1886 7F0ED4CDC704 asfasnfs: remove datepart'']']}
df = pandas.DataFrame(data=data)
def clean_text(text):
"""
:param text: it is the plain text
:return: cleaned text
"""
patterns = [r"^{53}",
r"[A-Za-z]+[d]+[w]*|[d]+[A-Za-z]+[w]*",
r"[-=/':,?${}[]-_()>.~" ";+]"]
for p in patterns:
text = re.sub(p, '', text)
return text
My Solution:
df['txt'] = df['txt'].apply(lambda x: clean_text(x))
But I am getting below error:
Error
sre_constants.error: nothing to repeat at position 1
python regex list
python regex list
edited Feb 10 at 22:42
coldspeed
141k25157245
asked Feb 10 at 19:34
user15051990user15051990
710717
edited Feb 10 at 22:42
coldspeed
141k25157245
asked Feb 10 at 19:34
user15051990user15051990
710717
edited Feb 10 at 22:42
coldspeed
141k25157245
edited Feb 10 at 22:42
coldspeed
141k25157245
edited Feb 10 at 22:42
coldspeed
141k25157245
141k25157245
asked Feb 10 at 19:34
user15051990user15051990
710717
asked Feb 10 at 19:34
user15051990user15051990
710717
asked Feb 10 at 19:34
user15051990user15051990
710717
710717
Possible duplicate of Regex sre_constants.error: bad character range
– sophros
Feb 10 at 19:59
@sophros, this question is different.
– user15051990
Feb 10 at 20:07
in what way it is different? The error is the same.
– sophros
Feb 10 at 20:12
add a comment |
Possible duplicate of Regex sre_constants.error: bad character range
– sophros
Feb 10 at 19:59
@sophros, this question is different.
– user15051990
Feb 10 at 20:07
in what way it is different? The error is the same.
– sophros
Feb 10 at 20:12
Possible duplicate of Regex sre_constants.error: bad character range
– sophros
Feb 10 at 19:59
Possible duplicate of Regex sre_constants.error: bad character range
– sophros
Feb 10 at 19:59
@sophros, this question is different.
– user15051990
Feb 10 at 20:07
@sophros, this question is different.
– user15051990
Feb 10 at 20:07
in what way it is different? The error is the same.
– sophros
Feb 10 at 20:12
in what way it is different? The error is the same.
– sophros
Feb 10 at 20:12
add a comment |
2 Answers
2
active
oldest
votes
^{53} is not a valid regular expression, since the repeater {53} must be preceded by a character or a pattern that can be repeated. If you mean to make it validate a string that is at least 53 characters long you can use the following pattern instead:
^.{53}
answered Feb 10 at 19:54
blhsingblhsing
43.5k41744
1
Thanks for answer. I have updated question, now I getAttribute error.
– user15051990
Feb 10 at 19:59
1
@user15051990 Does^.{53,}work?
– MilkyWay90
Feb 10 at 23:38
add a comment |
The culprit is the first pattern from the list - r"^{53}". It reads: ^ - match the beginning of the string and then {53} repeat the previous character or group 53 times. Wait... but there is no other character than ^ which cannot be repeated! Indeed. Add a char that you want to match 53 repetitions of. Or, escape the sequence {53} if you want to match it verbatim, e.g. using re.escape.
answered Feb 10 at 19:57
sophrossophros
2,98411134
Thanks for answer. I have updated question, now I getAttribute error.
– user15051990
Feb 10 at 19:59
2
This should really be another question. How a reader of the question can make any sense of the answers if you change the crucial elements of the question?
– sophros
Feb 10 at 20:08
Alright I will post it as different question.
– user15051990
Feb 10 at 20:09
1
And before you do that - please revert the change first so that the answers make sense with the question.
– sophros
Feb 10 at 20:11
2
I have already done that although I believe you should reward the effort already made on answering this question.
– sophros
Feb 10 at 20:16
|
show 1 more comment
Your Answer
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
^{53} is not a valid regular expression, since the repeater {53} must be preceded by a character or a pattern that can be repeated. If you mean to make it validate a string that is at least 53 characters long you can use the following pattern instead:
^.{53}
answered Feb 10 at 19:54
blhsingblhsing
43.5k41744
1
Thanks for answer. I have updated question, now I getAttribute error.
– user15051990
Feb 10 at 19:59
1
@user15051990 Does^.{53,}work?
– MilkyWay90
Feb 10 at 23:38
add a comment |
^{53} is not a valid regular expression, since the repeater {53} must be preceded by a character or a pattern that can be repeated. If you mean to make it validate a string that is at least 53 characters long you can use the following pattern instead:
^.{53}
answered Feb 10 at 19:54
blhsingblhsing
43.5k41744
1
Thanks for answer. I have updated question, now I getAttribute error.
– user15051990
Feb 10 at 19:59
1
@user15051990 Does^.{53,}work?
– MilkyWay90
Feb 10 at 23:38
add a comment |
^{53} is not a valid regular expression, since the repeater {53} must be preceded by a character or a pattern that can be repeated. If you mean to make it validate a string that is at least 53 characters long you can use the following pattern instead:
^.{53}
answered Feb 10 at 19:54
blhsingblhsing
43.5k41744
^{53} is not a valid regular expression, since the repeater {53} must be preceded by a character or a pattern that can be repeated. If you mean to make it validate a string that is at least 53 characters long you can use the following pattern instead:
^.{53}
answered Feb 10 at 19:54
blhsingblhsing
43.5k41744
answered Feb 10 at 19:54
blhsingblhsing
43.5k41744
answered Feb 10 at 19:54
blhsingblhsing
43.5k41744
answered Feb 10 at 19:54
blhsingblhsing
43.5k41744
43.5k41744
1
Thanks for answer. I have updated question, now I getAttribute error.
– user15051990
Feb 10 at 19:59
1
@user15051990 Does^.{53,}work?
– MilkyWay90
Feb 10 at 23:38
add a comment |
1
Thanks for answer. I have updated question, now I getAttribute error.
– user15051990
Feb 10 at 19:59
1
@user15051990 Does^.{53,}work?
– MilkyWay90
Feb 10 at 23:38
1
1
Thanks for answer. I have updated question, now I get
Attribute error.– user15051990
Feb 10 at 19:59
Thanks for answer. I have updated question, now I get
Attribute error.– user15051990
Feb 10 at 19:59
1
1
@user15051990 Does
^.{53,} work?– MilkyWay90
Feb 10 at 23:38
@user15051990 Does
^.{53,} work?– MilkyWay90
Feb 10 at 23:38
add a comment |
The culprit is the first pattern from the list - r"^{53}". It reads: ^ - match the beginning of the string and then {53} repeat the previous character or group 53 times. Wait... but there is no other character than ^ which cannot be repeated! Indeed. Add a char that you want to match 53 repetitions of. Or, escape the sequence {53} if you want to match it verbatim, e.g. using re.escape.
answered Feb 10 at 19:57
sophrossophros
2,98411134
Thanks for answer. I have updated question, now I getAttribute error.
– user15051990
Feb 10 at 19:59
2
This should really be another question. How a reader of the question can make any sense of the answers if you change the crucial elements of the question?
– sophros
Feb 10 at 20:08
Alright I will post it as different question.
– user15051990
Feb 10 at 20:09
1
And before you do that - please revert the change first so that the answers make sense with the question.
– sophros
Feb 10 at 20:11
2
I have already done that although I believe you should reward the effort already made on answering this question.
– sophros
Feb 10 at 20:16
|
show 1 more comment
The culprit is the first pattern from the list - r"^{53}". It reads: ^ - match the beginning of the string and then {53} repeat the previous character or group 53 times. Wait... but there is no other character than ^ which cannot be repeated! Indeed. Add a char that you want to match 53 repetitions of. Or, escape the sequence {53} if you want to match it verbatim, e.g. using re.escape.
answered Feb 10 at 19:57
sophrossophros
2,98411134
Thanks for answer. I have updated question, now I getAttribute error.
– user15051990
Feb 10 at 19:59
2
This should really be another question. How a reader of the question can make any sense of the answers if you change the crucial elements of the question?
– sophros
Feb 10 at 20:08
Alright I will post it as different question.
– user15051990
Feb 10 at 20:09
1
And before you do that - please revert the change first so that the answers make sense with the question.
– sophros
Feb 10 at 20:11
2
I have already done that although I believe you should reward the effort already made on answering this question.
– sophros
Feb 10 at 20:16
|
show 1 more comment
The culprit is the first pattern from the list - r"^{53}". It reads: ^ - match the beginning of the string and then {53} repeat the previous character or group 53 times. Wait... but there is no other character than ^ which cannot be repeated! Indeed. Add a char that you want to match 53 repetitions of. Or, escape the sequence {53} if you want to match it verbatim, e.g. using re.escape.
answered Feb 10 at 19:57
sophrossophros
2,98411134
The culprit is the first pattern from the list - r"^{53}". It reads: ^ - match the beginning of the string and then {53} repeat the previous character or group 53 times. Wait... but there is no other character than ^ which cannot be repeated! Indeed. Add a char that you want to match 53 repetitions of. Or, escape the sequence {53} if you want to match it verbatim, e.g. using re.escape.
answered Feb 10 at 19:57
sophrossophros
2,98411134
answered Feb 10 at 19:57
sophrossophros
2,98411134
answered Feb 10 at 19:57
sophrossophros
2,98411134
answered Feb 10 at 19:57
sophrossophros
2,98411134
2,98411134
Thanks for answer. I have updated question, now I getAttribute error.
– user15051990
Feb 10 at 19:59
2
This should really be another question. How a reader of the question can make any sense of the answers if you change the crucial elements of the question?
– sophros
Feb 10 at 20:08
Alright I will post it as different question.
– user15051990
Feb 10 at 20:09
1
And before you do that - please revert the change first so that the answers make sense with the question.
– sophros
Feb 10 at 20:11
2
I have already done that although I believe you should reward the effort already made on answering this question.
– sophros
Feb 10 at 20:16
|
show 1 more comment
Thanks for answer. I have updated question, now I getAttribute error.
– user15051990
Feb 10 at 19:59
2
This should really be another question. How a reader of the question can make any sense of the answers if you change the crucial elements of the question?
– sophros
Feb 10 at 20:08
Alright I will post it as different question.
– user15051990
Feb 10 at 20:09
1
And before you do that - please revert the change first so that the answers make sense with the question.
– sophros
Feb 10 at 20:11
2
I have already done that although I believe you should reward the effort already made on answering this question.
– sophros
Feb 10 at 20:16
Thanks for answer. I have updated question, now I get
Attribute error.– user15051990
Feb 10 at 19:59
Thanks for answer. I have updated question, now I get
Attribute error.– user15051990
Feb 10 at 19:59
2
2
This should really be another question. How a reader of the question can make any sense of the answers if you change the crucial elements of the question?
– sophros
Feb 10 at 20:08
This should really be another question. How a reader of the question can make any sense of the answers if you change the crucial elements of the question?
– sophros
Feb 10 at 20:08
Alright I will post it as different question.
– user15051990
Feb 10 at 20:09
Alright I will post it as different question.
– user15051990
Feb 10 at 20:09
1
1
And before you do that - please revert the change first so that the answers make sense with the question.
– sophros
Feb 10 at 20:11
And before you do that - please revert the change first so that the answers make sense with the question.
– sophros
Feb 10 at 20:11
2
2
I have already done that although I believe you should reward the effort already made on answering this question.
– sophros
Feb 10 at 20:16
I have already done that although I believe you should reward the effort already made on answering this question.
– sophros
Feb 10 at 20:16
|
show 1 more comment
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Possible duplicate of Regex sre_constants.error: bad character range
– sophros
Feb 10 at 19:59
@sophros, this question is different.
– user15051990
Feb 10 at 20:07
in what way it is different? The error is the same.
– sophros
Feb 10 at 20:12