Extract the application name with version from an RPM string like
hpsmh-1.1.1.2-0-RHEL3-Linux.RPM, i require to extract hpsmh-1.1.1.2-0
from above string. Sometimes the RPM string may be hpsmh-1.1.1.2-RHEL3-
Linux.RPM. 6 1760
On Wed, 11 Jul 2007 03:40:06 +0000, hari.siri74 wrote:
Extract the application name with version from an RPM string like
hpsmh-1.1.1.2-0-RHEL3-Linux.RPM, i require to extract hpsmh-1.1.1.2-0
from above string. Sometimes the RPM string may be hpsmh-1.1.1.2-RHEL3-
Linux.RPM.
Thank you for sharing.
The answer to your problem is here: http://tinyurl.com/anel
--
Steven.
On Jul 11, 1:40 pm, hari.sir...@gmail.com wrote:
Extract the application name with version from an RPM string like
hpsmh-1.1.1.2-0-RHEL3-Linux.RPM, i require to extract hpsmh-1.1.1.2-0
from above string. Sometimes the RPM string may be hpsmh-1.1.1.2-RHEL3-
Linux.RPM.
Now that list-like splicing and indexing works on strings, why not
just splice the string, using .index to locate '-RHEL'? ha*********@gmail.com wrote:
Extract the application name with version from an RPM string like
hpsmh-1.1.1.2-0-RHEL3-Linux.RPM, i require to extract hpsmh-1.1.1.2-0
from above string. Sometimes the RPM string may be hpsmh-1.1.1.2-RHEL3-
Linux.RPM.
Have a try with
import re
P=re.compile(r'(\w+(?:[-.]\d+)+)-RHEL3-Linux\.RPM')
S="hpsmh-1.1.1.2-0-RHEL3-Linux.RPM"
PO= P.match(S)
if PO :
print PO.group(1)
--
Helmut Jarausch
Lehrstuhl fuer Numerische Mathematik
RWTH - Aachen University
D 52056 Aachen, Germany
Helmut Jarausch wrote:
ha*********@gmail.com wrote:
>Extract the application name with version from an RPM string like hpsmh-1.1.1.2-0-RHEL3-Linux.RPM, i require to extract hpsmh-1.1.1.2-0 from above string. Sometimes the RPM string may be hpsmh-1.1.1.2-RHEL3- Linux.RPM.
Have a try with
import re
P=re.compile(r'(\w+(?:[-.]\d+)+)-RHEL3-Linux\.RPM')
S="hpsmh-1.1.1.2-0-RHEL3-Linux.RPM"
PO= P.match(S)
if PO :
print PO.group(1)
A slightly more generic match in case your package names turn out to be less consistent than given in the test cases:
#!/usr/bin/python
import re
pattern = re.compile(r'(\w+?-(\d+[\.-])+\d+?)-\D+.*RPM')
pkgnames = ["hpsmh-1.1.1.2-0-RHEL3-Linux.RPM", "hpsmh-1.1.1.2-RHEL3-Linux.RPM"]
for pkg in pkgnames:
matchObj = pattern.search(pkg)
if matchObj:
print matchObj.group(1)
Still assumes it will end in RPM (all caps), but if you add the flag "re.I" to the re.compile() call, it will match case-insensitive.
Hope that helps,
-Jay ha*********@gmail.com wrote:
>A slightly more generic match in case your package names turn out to be less consistent than given in the test cases:
#!/usr/bin/python
import re pattern = re.compile(r'(\w+?-(\d+[\.-])+\d+?)-\D+.*RPM') pkgnames = ["hpsmh-1.1.1.2-0-RHEL3-Linux.RPM", "hpsmh-1.1.1.2-RHEL3-Linux.RPM"] for pkg in pkgnames: matchObj = pattern.search(pkg) if matchObj: print matchObj.group(1)
Still assumes it will end in RPM (all caps), but if you add the flag "re.I" to the re.compile() call, it will match case-insensitive.
Hope that helps,
-Jay
How about if i had something like 1-3 words in the application name:
websphere-pk543-1.1.4.2-1-RHEL3-i386.rpm (in this case are 2 words)?
Try this instead then:
#!/usr/bin/python
import re
pattern = re.compile(r'((\w+?-)+?(\d+[\.-])+\d+?)-\D+.*RPM', re.I)
pkgnames = ["hpsmh-1.1.1.2-0-RHEL3-Linux.RPM", "hpsmh-1.1.1.2-RHEL3-Linux.RPM", "websphere-pk543-1.1.4.2-1-RHEL3-i386.rpm"]
for pkg in pkgnames:
matchObj = pattern.search(pkg)
if matchObj:
print matchObj.group(1)
On Jul 11, 9:29 pm, Helmut Jarausch <jarau...@igpm.rwth-aachen.de>
wrote:
import re
P=re.compile(r'(\w+(?:[-.]\d+)+)-RHEL3-Linux\.RPM')
S="hpsmh-1.1.1.2-0-RHEL3-Linux.RPM"
PO= P.match(S)
if PO :
print PO.group(1)
Isn't a regexp overkill here when this will do:
head = filename[:filename.index('-RHEL3')]
Of course if you need to make it more generic (as in Jay's solution
below), re is the way to go. This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics
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