Python regular expression not raising exception inside header.py
1
my client looks like this->
from email.mime.multipart import MIMEMultipart
b = MIMEMultipart()
b['a'] = "Hello"
b['b'] = "--nhttp://www.stallergenes.com/images/STAL_mail.png"
b.as_string()
This calls a function _write_headers in generator.py
This generator.py calls encode method in header.py
encode function inside header.py looks like this ->
def encode(self, splitchars=';, t', maxlinelen=None, linesep='n'):
_embedded_header = re.compile(r'n[^ t]+:')
print 'value in header.py is -> %s, %s, %s' %(value, type(value), _embeded_header.pattern, _embeded_header.search(value))
if _embedded_header.search(value):
raise HeaderParseError("header value appears to contain "
"an embedded header: {!r}".format(value))
return value
In python2.7, this is my header.py file inside docker container.
Value of print statement in header.py-> --nhttp://www.stallergenes.com/images/STAL_mail.png, n[^ t]+:, None
So Basically, it should have been matched. why it is not getting matched against this regex?
python regex python-2.7
edited Nov 28 '18 at 16:40
DYZ
27.8k62150
asked Nov 28 '18 at 11:07
Kartik ThakurelaKartik Thakurela
297
add a comment |
1
my client looks like this->
from email.mime.multipart import MIMEMultipart
b = MIMEMultipart()
b['a'] = "Hello"
b['b'] = "--nhttp://www.stallergenes.com/images/STAL_mail.png"
b.as_string()
This calls a function _write_headers in generator.py
This generator.py calls encode method in header.py
encode function inside header.py looks like this ->
def encode(self, splitchars=';, t', maxlinelen=None, linesep='n'):
_embedded_header = re.compile(r'n[^ t]+:')
print 'value in header.py is -> %s, %s, %s' %(value, type(value), _embeded_header.pattern, _embeded_header.search(value))
if _embedded_header.search(value):
raise HeaderParseError("header value appears to contain "
"an embedded header: {!r}".format(value))
return value
In python2.7, this is my header.py file inside docker container.
Value of print statement in header.py-> --nhttp://www.stallergenes.com/images/STAL_mail.png, n[^ t]+:, None
So Basically, it should have been matched. why it is not getting matched against this regex?
python regex python-2.7
edited Nov 28 '18 at 16:40
DYZ
27.8k62150
asked Nov 28 '18 at 11:07
Kartik ThakurelaKartik Thakurela
297
If the output ofprintis--nhttp://www.stallergenes.com/images/STAL_mail.png, then you do not have a line break in thevalue. Otherwise,'n'would be displayed as a line break. Apparently your'n'is actually a'\n'.
– DYZ
Nov 28 '18 at 16:45
But why it is not breaking? it is also working fine for inputs like "Cecilia Alarcon 12:01 PM:n(y):D", "Failed monitors include:nFreeWheel: 2018-03-25", "Anoka Stake Centern6:30 & 7:30pmCT"
– Kartik Thakurela
Nov 29 '18 at 5:47
add a comment |
1
1
1
my client looks like this->
from email.mime.multipart import MIMEMultipart
b = MIMEMultipart()
b['a'] = "Hello"
b['b'] = "--nhttp://www.stallergenes.com/images/STAL_mail.png"
b.as_string()
This calls a function _write_headers in generator.py
This generator.py calls encode method in header.py
encode function inside header.py looks like this ->
def encode(self, splitchars=';, t', maxlinelen=None, linesep='n'):
_embedded_header = re.compile(r'n[^ t]+:')
print 'value in header.py is -> %s, %s, %s' %(value, type(value), _embeded_header.pattern, _embeded_header.search(value))
if _embedded_header.search(value):
raise HeaderParseError("header value appears to contain "
"an embedded header: {!r}".format(value))
return value
In python2.7, this is my header.py file inside docker container.
Value of print statement in header.py-> --nhttp://www.stallergenes.com/images/STAL_mail.png, n[^ t]+:, None
So Basically, it should have been matched. why it is not getting matched against this regex?
python regex python-2.7
edited Nov 28 '18 at 16:40
DYZ
27.8k62150
asked Nov 28 '18 at 11:07
Kartik ThakurelaKartik Thakurela
297
my client looks like this->
from email.mime.multipart import MIMEMultipart
b = MIMEMultipart()
b['a'] = "Hello"
b['b'] = "--nhttp://www.stallergenes.com/images/STAL_mail.png"
b.as_string()
This calls a function _write_headers in generator.py
This generator.py calls encode method in header.py
encode function inside header.py looks like this ->
def encode(self, splitchars=';, t', maxlinelen=None, linesep='n'):
_embedded_header = re.compile(r'n[^ t]+:')
print 'value in header.py is -> %s, %s, %s' %(value, type(value), _embeded_header.pattern, _embeded_header.search(value))
if _embedded_header.search(value):
raise HeaderParseError("header value appears to contain "
"an embedded header: {!r}".format(value))
return value
In python2.7, this is my header.py file inside docker container.
Value of print statement in header.py-> --nhttp://www.stallergenes.com/images/STAL_mail.png, n[^ t]+:, None
So Basically, it should have been matched. why it is not getting matched against this regex?
python regex python-2.7
python regex python-2.7
edited Nov 28 '18 at 16:40
DYZ
27.8k62150
asked Nov 28 '18 at 11:07
Kartik ThakurelaKartik Thakurela
297
edited Nov 28 '18 at 16:40
DYZ
27.8k62150
asked Nov 28 '18 at 11:07
Kartik ThakurelaKartik Thakurela
297
edited Nov 28 '18 at 16:40
DYZ
27.8k62150
edited Nov 28 '18 at 16:40
DYZ
27.8k62150
edited Nov 28 '18 at 16:40
DYZ
27.8k62150
27.8k62150
asked Nov 28 '18 at 11:07
Kartik ThakurelaKartik Thakurela
297
asked Nov 28 '18 at 11:07
Kartik ThakurelaKartik Thakurela
297
asked Nov 28 '18 at 11:07
Kartik ThakurelaKartik Thakurela
297
297
If the output ofprintis--nhttp://www.stallergenes.com/images/STAL_mail.png, then you do not have a line break in thevalue. Otherwise,'n'would be displayed as a line break. Apparently your'n'is actually a'\n'.
– DYZ
Nov 28 '18 at 16:45
But why it is not breaking? it is also working fine for inputs like "Cecilia Alarcon 12:01 PM:n(y):D", "Failed monitors include:nFreeWheel: 2018-03-25", "Anoka Stake Centern6:30 & 7:30pmCT"
– Kartik Thakurela
Nov 29 '18 at 5:47
add a comment |
If the output ofprintis--nhttp://www.stallergenes.com/images/STAL_mail.png, then you do not have a line break in thevalue. Otherwise,'n'would be displayed as a line break. Apparently your'n'is actually a'\n'.
– DYZ
Nov 28 '18 at 16:45
But why it is not breaking? it is also working fine for inputs like "Cecilia Alarcon 12:01 PM:n(y):D", "Failed monitors include:nFreeWheel: 2018-03-25", "Anoka Stake Centern6:30 & 7:30pmCT"
– Kartik Thakurela
Nov 29 '18 at 5:47
If the output of
print is --nhttp://www.stallergenes.com/images/STAL_mail.png, then you do not have a line break in the value. Otherwise, 'n' would be displayed as a line break. Apparently your 'n' is actually a '\n'.– DYZ
Nov 28 '18 at 16:45
If the output of
print is --nhttp://www.stallergenes.com/images/STAL_mail.png, then you do not have a line break in the value. Otherwise, 'n' would be displayed as a line break. Apparently your 'n' is actually a '\n'.– DYZ
Nov 28 '18 at 16:45
But why it is not breaking? it is also working fine for inputs like "Cecilia Alarcon 12:01 PM:n(y):D", "Failed monitors include:nFreeWheel: 2018-03-25", "Anoka Stake Centern6:30 & 7:30pmCT"
– Kartik Thakurela
Nov 29 '18 at 5:47
But why it is not breaking? it is also working fine for inputs like "Cecilia Alarcon 12:01 PM:n(y):D", "Failed monitors include:nFreeWheel: 2018-03-25", "Anoka Stake Centern6:30 & 7:30pmCT"
– Kartik Thakurela
Nov 29 '18 at 5:47
add a comment |
1 Answer
1
active
oldest
votes
-1
n matches a new line. I don't think that this was your purpose. If you escape it by adding a it should work-
\n[^ t]+:
answered Nov 28 '18 at 11:10
Laurent MouchartLaurent Mouchart
195313
1
OP has a newline in"--nhttp://www.stallergenes.com/images/STAL_mail.png", it is not a sequence ofandnchars.
– Wiktor Stribiżew
Nov 28 '18 at 11:12
@WiktorStribiżew What should I change? is this because of some raw string input? I tried with another input value in header.py is -> BUENAS TARDES.nLES MANDO LOS REPORTES DE JLnNOTA: SIN PAROS, <type 'str'>, None searching --- -1 Code in header.py is something like this... print 'value in header.py is -> %s, %s, %s' %(value, type(value), _embeded_header.search(value)) print 'searching --- %s' %(value.find('n'))
– Kartik Thakurela
Dec 12 '18 at 11:10
@KartikThakurela Sorry, I cannot repro that.
– Wiktor Stribiżew
Dec 12 '18 at 11:13
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
-1
n matches a new line. I don't think that this was your purpose. If you escape it by adding a it should work-
\n[^ t]+:
answered Nov 28 '18 at 11:10
Laurent MouchartLaurent Mouchart
195313
1
OP has a newline in"--nhttp://www.stallergenes.com/images/STAL_mail.png", it is not a sequence ofandnchars.
– Wiktor Stribiżew
Nov 28 '18 at 11:12
@WiktorStribiżew What should I change? is this because of some raw string input? I tried with another input value in header.py is -> BUENAS TARDES.nLES MANDO LOS REPORTES DE JLnNOTA: SIN PAROS, <type 'str'>, None searching --- -1 Code in header.py is something like this... print 'value in header.py is -> %s, %s, %s' %(value, type(value), _embeded_header.search(value)) print 'searching --- %s' %(value.find('n'))
– Kartik Thakurela
Dec 12 '18 at 11:10
@KartikThakurela Sorry, I cannot repro that.
– Wiktor Stribiżew
Dec 12 '18 at 11:13
add a comment |
-1
n matches a new line. I don't think that this was your purpose. If you escape it by adding a it should work-
\n[^ t]+:
answered Nov 28 '18 at 11:10
Laurent MouchartLaurent Mouchart
195313
1
OP has a newline in"--nhttp://www.stallergenes.com/images/STAL_mail.png", it is not a sequence ofandnchars.
– Wiktor Stribiżew
Nov 28 '18 at 11:12
@WiktorStribiżew What should I change? is this because of some raw string input? I tried with another input value in header.py is -> BUENAS TARDES.nLES MANDO LOS REPORTES DE JLnNOTA: SIN PAROS, <type 'str'>, None searching --- -1 Code in header.py is something like this... print 'value in header.py is -> %s, %s, %s' %(value, type(value), _embeded_header.search(value)) print 'searching --- %s' %(value.find('n'))
– Kartik Thakurela
Dec 12 '18 at 11:10
@KartikThakurela Sorry, I cannot repro that.
– Wiktor Stribiżew
Dec 12 '18 at 11:13
add a comment |
-1
-1
-1
n matches a new line. I don't think that this was your purpose. If you escape it by adding a it should work-
\n[^ t]+:
answered Nov 28 '18 at 11:10
Laurent MouchartLaurent Mouchart
195313
n matches a new line. I don't think that this was your purpose. If you escape it by adding a it should work-
\n[^ t]+:
answered Nov 28 '18 at 11:10
Laurent MouchartLaurent Mouchart
195313
answered Nov 28 '18 at 11:10
Laurent MouchartLaurent Mouchart
195313
answered Nov 28 '18 at 11:10
Laurent MouchartLaurent Mouchart
195313
answered Nov 28 '18 at 11:10
Laurent MouchartLaurent Mouchart
195313
195313
1
OP has a newline in"--nhttp://www.stallergenes.com/images/STAL_mail.png", it is not a sequence ofandnchars.
– Wiktor Stribiżew
Nov 28 '18 at 11:12
@WiktorStribiżew What should I change? is this because of some raw string input? I tried with another input value in header.py is -> BUENAS TARDES.nLES MANDO LOS REPORTES DE JLnNOTA: SIN PAROS, <type 'str'>, None searching --- -1 Code in header.py is something like this... print 'value in header.py is -> %s, %s, %s' %(value, type(value), _embeded_header.search(value)) print 'searching --- %s' %(value.find('n'))
– Kartik Thakurela
Dec 12 '18 at 11:10
@KartikThakurela Sorry, I cannot repro that.
– Wiktor Stribiżew
Dec 12 '18 at 11:13
add a comment |
1
OP has a newline in"--nhttp://www.stallergenes.com/images/STAL_mail.png", it is not a sequence ofandnchars.
– Wiktor Stribiżew
Nov 28 '18 at 11:12
@WiktorStribiżew What should I change? is this because of some raw string input? I tried with another input value in header.py is -> BUENAS TARDES.nLES MANDO LOS REPORTES DE JLnNOTA: SIN PAROS, <type 'str'>, None searching --- -1 Code in header.py is something like this... print 'value in header.py is -> %s, %s, %s' %(value, type(value), _embeded_header.search(value)) print 'searching --- %s' %(value.find('n'))
– Kartik Thakurela
Dec 12 '18 at 11:10
@KartikThakurela Sorry, I cannot repro that.
– Wiktor Stribiżew
Dec 12 '18 at 11:13
1
1
OP has a newline in
"--nhttp://www.stallergenes.com/images/STAL_mail.png", it is not a sequence of n chars.– Wiktor Stribiżew
Nov 28 '18 at 11:12
OP has a newline in
"--nhttp://www.stallergenes.com/images/STAL_mail.png", it is not a sequence of n chars.– Wiktor Stribiżew
Nov 28 '18 at 11:12
@WiktorStribiżew What should I change? is this because of some raw string input? I tried with another input value in header.py is -> BUENAS TARDES.nLES MANDO LOS REPORTES DE JLnNOTA: SIN PAROS, <type 'str'>, None searching --- -1 Code in header.py is something like this... print 'value in header.py is -> %s, %s, %s' %(value, type(value), _embeded_header.search(value)) print 'searching --- %s' %(value.find('n'))
– Kartik Thakurela
Dec 12 '18 at 11:10
@WiktorStribiżew What should I change? is this because of some raw string input? I tried with another input value in header.py is -> BUENAS TARDES.nLES MANDO LOS REPORTES DE JLnNOTA: SIN PAROS, <type 'str'>, None searching --- -1 Code in header.py is something like this... print 'value in header.py is -> %s, %s, %s' %(value, type(value), _embeded_header.search(value)) print 'searching --- %s' %(value.find('n'))
– Kartik Thakurela
Dec 12 '18 at 11:10
@KartikThakurela Sorry, I cannot repro that.
– Wiktor Stribiżew
Dec 12 '18 at 11:13
@KartikThakurela Sorry, I cannot repro that.
– Wiktor Stribiżew
Dec 12 '18 at 11:13
add a comment |
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If the output of
printis--nhttp://www.stallergenes.com/images/STAL_mail.png, then you do not have a line break in thevalue. Otherwise,'n'would be displayed as a line break. Apparently your'n'is actually a'\n'.– DYZ
Nov 28 '18 at 16:45
But why it is not breaking? it is also working fine for inputs like "Cecilia Alarcon 12:01 PM:n(y):D", "Failed monitors include:nFreeWheel: 2018-03-25", "Anoka Stake Centern6:30 & 7:30pmCT"
– Kartik Thakurela
Nov 29 '18 at 5:47