Using Regex to match numbers on rows of different size in Python -


i have file contain positive , negative numbers in row of different sizes. trying extract numbers using regex.however, skips rows below.

part of input file:

. . . ...s --   -0.28096  -0.27907  -0.27770  -0.27730  -0.27573 ...s --   -0.27149  -0.27076  -0.27036  -0.26883  -0.26794 ...s --   -0.26301  -0.26114  -0.26098  -0.25950  -0.25891 ...s --   -0.25536  -0.25209  -0.24952  -0.24903  -0.24533 ...s --   **-0.24351  -0.23272  -0.07408** ...s --   -0.01149  -0.01028  -0.00892  -0.00888  -0.00665 ...s --   -0.00445  -0.00268  -0.00006   **0.00109   0.00187** ...s --    **0.00295   0.00318   0.00470   0.00575   0.00696** . . .

my code:

with open('input') x:     file.write('output')     file.write("\n")     t in itertools.islice(x,7821,7831):         k = re.search(r'(?<=s\s\s\s\s\s\s)[+-]?\d+\.\d+|\d+\s\s\[-+]?\d+\.\d+|\d+\s\s\[-+]?\d+\.\d+|\d+\s\s\[-+]?\d+\.\d+|\d+\s\s\[-+]?\d+\.\d+|\d+' , t)          if k:             r1.append(k.group())     file.write(str(' '.join(map(str,r1))))

the output

output

-0.28096  -0.27907  -0.27770  -0.27730  -0.27573 -0.27149  -0.27076  -0.27036  -0.26883  -0.26794 -0.26301  -0.26114  -0.26098  -0.25950  -0.25891 -0.25536  -0.25209  -0.24952  -0.24903  -0.24533 -0.01149  -0.01028  -0.00892  -0.00888  -0.00665

as can see output not contain numbers in bold in input file.

how should modified code make more inclusive , extract data between lines put in range? thank in advance!

your regex allows negative numbers, , requires @ least 5 numbers in line.

try (?<=s\s\s\s\s)(\s\s[- ]\d+\.\d+)+.


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