On 2018-07-21 15:20, aldi.kr...@gmail.com wrote:
Hi,
I have a long text, which tells me which files from a database were downloaded and which
ones failed. The pattern is as follows (at the end of this post). Wrote a tiny program,
but still is raw. I want to find term "ERROR" and go 5 lines above and get the
name with suffix XPT, in this first case DRXIFF_F.XPT, but it changes in other cases to
some other name with suffix XPT. Thanks, Aldi
# reading errors from a file txt
import re
with open('nohup.out', 'r') as fh:
lines = fh.readlines()
for line in lines:
m1 = re.search("XPT", line)
m2 = re.search('ERROR', line)
if m1:
print(line)
if m2:
print(line)
Firstly, you don't need regex for something has simple has checking for
the presence of a string.
Secondly, I think it's 4 lines above, not 5.
'enumerate' comes in useful here:
with open('nohup.out', 'r') as fh:
lines = fh.readlines()
for i, line in enumerate(lines):
if 'ERROR' in line:
print(line)
print(lines[i - 4])
--2018-07-14 21:26:45-- https://wwwn.cdc.gov/Nchs/Nhanes/2009-2010/DRXIFF_F.XPT
Resolving wwwn.cdc.gov (wwwn.cdc.gov)... 198.246.102.39
Connecting to wwwn.cdc.gov (wwwn.cdc.gov)|198.246.102.39|:443... connected.
HTTP request sent, awaiting response... 404 Not Found
2018-07-14 21:26:46 ERROR 404: Not Found.
--2018-07-14 21:26:46-- https://wwwn.cdc.gov/Nchs/Nhanes/2009-2010/DRXTOT_F.XPT
Resolving wwwn.cdc.gov (wwwn.cdc.gov)... 198.246.102.39
Connecting to wwwn.cdc.gov (wwwn.cdc.gov)|198.246.102.39|:443... connected.
HTTP request sent, awaiting response... 404 Not Found
2018-07-14 21:26:46 ERROR 404: Not Found.
--2018-07-14 21:26:46-- https://wwwn.cdc.gov/Nchs/Nhanes/2009-2010/DRXFMT_F.XPT
Resolving wwwn.cdc.gov (wwwn.cdc.gov)... 198.246.102.39
Connecting to wwwn.cdc.gov (wwwn.cdc.gov)|198.246.102.39|:443... connected.
HTTP request sent, awaiting response... 404 Not Found
2018-07-14 21:26:46 ERROR 404: Not Found.
--2018-07-14 21:26:46-- https://wwwn.cdc.gov/Nchs/Nhanes/2009-2010/DSQ1_F.XPT
Resolving wwwn.cdc.gov (wwwn.cdc.gov)... 198.246.102.39
Connecting to wwwn.cdc.gov (wwwn.cdc.gov)|198.246.102.39|:443... connected.
HTTP request sent, awaiting response... 404 Not Found
2018-07-14 21:26:47 ERROR 404: Not Found.
--2018-07-14 21:26:47-- https://wwwn.cdc.gov/Nchs/Nhanes/1999-2000/DSII.XPT
Resolving wwwn.cdc.gov (wwwn.cdc.gov)... 198.246.102.39
Connecting to wwwn.cdc.gov (wwwn.cdc.gov)|198.246.102.39|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 56060880 (53M) [application/octet-stream]
Saving to: ‘DSII.XPT’
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