Python: Match a special caracter with regular expression - regex

Question

Hi everyone I'm using the re.match function to extract pieces of string within a row from the file.
My code is as follows:
## fp_tmp => pointer of file
for x in fp_tmp:
try:
cpuOverall=re.match(r"(Overall CPU load average)\s+(\S+)(%)",x)
cpuUsed=re.match(r"(Total)\s+(\d+)(%)",x)
ramUsed=re.match(r"(RAM Utilization)\s+(\d+\%)",x)
####Not Work####
if cpuUsed is not None: cpuused_new=cpuUsed.group(2)
if ramUsed is not None: ramused_new=ramUsed.group(2)
if cpuOverall is not None: cpuoverall_new=cpuOverall.group(2)
except:
searchbox_result = None
Each field is extracted from the following corresponding line:
ramUsed => RAM Utilization 2%
cpuUsed => Total 4%
cpuOverall => Overall CPU load average 12%
ramUsed, cpuUsed, cpuOverall are the variable where I want write the result!!
Corretly line are:
(space undefined) RAM Utilization 2%
(space undefined) Total 4%
(space undefined) Overall CPU load average 12%
When I execute the script all variable return a value: None.
With other variable the script work corretly.
Why the code not work in this case? I use the python3
I think that the problem is a caracter % that not read.
Do you have any suggestions?
PROBLEM 2:
## fp_tmp => pointer of file
for x in fp_tmp:
try:
emailReceived=re.match(r".*(Messages Received)\s+\S+\s+\S+\s+(\S+)",x)
####Not Work####
if emailReceived is not None: emailreceived_new=emailReceived.group(2)
except:
searchbox_result = None
Each field is extracted from the following corresponding on 2 lines in a file:
[....]
Counters: Reset Uptime Lifetime
Receiving
Messages Received 3,406 1,558 3,406
[....]
Rates (Events Per Hour): 1-Minute 5-Minutes 15-Minutes
Receiving
Messages Received 0 0 0
Recipients Received 0 0 0
[....]
I want extract only second occured, that:
Rates (Events Per Hour): 1-Minute 5-Minutes 15-Minutes
Receiving
Messages Received 0 0 0 <-this
Do you have any suggestions?

Answer 1

cpuOverall line: you forgot that there is more information at the start of the line. Change to
'.*(Overall CPU load average)\s+(\S+%)'
cpuUsed line: you forgot that there is more information at the start of the line. Change to
'.*(Total)\s+(\d+%)'
ramUsed line: you forgot that there is more information at the start of the line... Change to
'.*(RAM Utilization)\s+(\d+%)'
Remember that re.match looks for an exact match from the start:
If zero or more characters at the beginning of string match the regular expression pattern, return a corresponding match object. [..]
With these changes, your three variables are set to the percentages:
>>> print (cpuused_new,ramused_new,cpuoverall_new)
4% 2% 12%