Regex matching two strings in one group

I'm trying to match two strings from a text file.I wrote a function to perform the matching for both strings. Only one string is printed and the other one is ignored although the sequence works : matched the string and tested with an online regex tester.

NVRAM_info.txt

NvRam is available, BlockSize is : 0x00001000
            Max. datasize is : 0x00040000

#

NVRAM_INFO = "NVRAM_info.txt"
import re

def Capture(Form,File_name,Fil,index):
    B = " "

  with open(File_name) as Fil:
    p = re.compile(Form) 
    for line in Fil:
        m = p.match(line)
        if m != None:
            B= m.group(1)
            if index == 2 :
               logging.info("the maximal Data size of the NVRAM is:%s",B)

            else:
               logging.info("the NVRAM Blocksize is:%s",B)


        break
    else:
        logging.info("couldnt find the Maximal userspace memory size")
return B
Maxsize = Capture(r"\s{1,}Max. datasize is :\s{1,}([a-zA-Z_0-9]{1,})","NVRAM_info.txt",NVRAM_INFO,2)
BlockSize = Capture(r"NvRam is available, BlockSize is :\s{1,}([a-zA-Z_0-9]{1,})","NVRAM_info.txt",NVRAM_INFO,1)

Try this

NVRAM_INFO = "NVRAM_info.txt"
import re

file = open(NVRAM_INFO, 'r')
test_str = file.read();
p = re.compile(u'BlockSize is : (\dx\d+)\n.*?Max. datasize is : (\dx\d+)', re.DOTALL)

g = re.findall(p, test_str)

Maxsize = g[0][1]
BlockSize = g[0][0]
print(Maxsize)
print(BlockSize)

Output:

0x00040000
0x00001000