How to change the Timer unit to seconds instead of 1e-9 seconds

[ogencoglu]

The Time column is hard to understand when Timer unit: 1e-09 s:

Line #      Hits         Time  Per Hit   % Time  Line Contents
==============================================================
    42      1872    1621000.0    865.9      0.1    
    43       936     136000.0    145.3      0.0          
    44       936   65239000.0  69699.8      2.4            
    45       936   46525000.0  49706.2      1.7                             
    47       936     163000.0    174.1      0.0          
    49      1872    9938000.0   5308.8      0.4      
    50      1872    8823000.0   4713.1      0.3       
    51       936    6674000.0   7130.3      0.2         
    52       936      95000.0    101.5      0.0    
    54      1872  721673000.0 385509.1     26.8     
    55       936    3798000.0   4057.7      0.1                             

Is there a way to show seconds rounded to 1 or 2 decimals? 7.22 is more readable than 721673000.0. How to control this?

[Erotemic]

See the unit argument:

python -m line_profiler --help

usage: __main__.py [-h] [-V] [-u UNIT] [-z] [-r] [-t] [-m] profile_output

positional arguments:
  profile_output        *.lprof file created by kernprof

options:
  -h, --help            show this help message and exit
  -V, --version         show program's version number and exit
  -u UNIT, --unit UNIT  Output unit (in seconds) in which the timing info is displayed (default: 1e-6)
  -z, --skip-zero       Hide functions which have not been called
  -r, --rich            Use rich formatting
  -t, --sort            Sort by ascending total time
  -m, --summarize       Print a summary of total function time

Example:

   echo "if 1:
        from line_profiler import profile

        @profile
        def is_prime(n):
            max_val = n ** 0.5
            stop = int(max_val + 1)
            for i in range(2, stop):
                if n % i == 0:
                    return False
            return True


        @profile
        def find_primes(size):
            primes = []
            for n in range(size):
                flag = is_prime(n)
                if flag:
                    primes.append(n)
            return primes


        @profile
        def main():
            print('start calculating')
            primes = find_primes(10)
            primes = find_primes(1000)
            primes = find_primes(100000)
            print(f'done calculating. Found {len(primes)} primes.')


        if __name__ == '__main__':
            main()
   " > script.py


   LINE_PROFILE=1 python script.py

   # Use different values for the unit report
   python -m line_profiler -rtmz --unit 1 profile_output.lprof
   python -m line_profiler -rtmz --unit 1e-6 profile_output.lprof
   python -m line_profiler -rtmz --unit 1e-9 profile_output.lprof

I made a documentation update to make this more clear: #293

[ogencoglu]

Thanks for the swift reply