Is there a way to detect if a block of code in the script itself contains a specific word

... and decide execution of that block based on the presence of that word?

For example I have this:

for frame in range(10):

    with open('frame_init.gro', 'w') as g:

        # do something

    with open('frame_next.gro', 'w') as h:

        # do something

When "frame" reaches 9, I don't want the whole with open('frame_next.gro', 'w') as h block to execute at all. Of course I have considered just encasing it in a if frame != 9 but my actual entire code is really long so it would be nice if I could just scan my script within the script itself if it is possible.

For those curious about what other things frame_next.gro is involved in, the answer is lots of calculations

asked Nov 12 '18 at 4:57

sneedshelp

This sounds like an XY problem. Can you explain what problem you are trying to solve with it?
– Klaus D.
Nov 12 '18 at 5:05

wow, this is actually really condescending. Thanks a lot.
– sneedshelp
Nov 12 '18 at 9:56

add a comment |

... and decide execution of that block based on the presence of that word?

For example I have this:

for frame in range(10):

    with open('frame_init.gro', 'w') as g:

        # do something

    with open('frame_next.gro', 'w') as h:

        # do something

For those curious about what other things frame_next.gro is involved in, the answer is lots of calculations

asked Nov 12 '18 at 4:57

sneedshelp

This sounds like an XY problem. Can you explain what problem you are trying to solve with it?
– Klaus D.
Nov 12 '18 at 5:05

wow, this is actually really condescending. Thanks a lot.
– sneedshelp
Nov 12 '18 at 9:56

add a comment |

... and decide execution of that block based on the presence of that word?

For example I have this:

for frame in range(10):

    with open('frame_init.gro', 'w') as g:

        # do something

    with open('frame_next.gro', 'w') as h:

        # do something

For those curious about what other things frame_next.gro is involved in, the answer is lots of calculations

asked Nov 12 '18 at 4:57

sneedshelp

... and decide execution of that block based on the presence of that word?

For example I have this:

for frame in range(10):

    with open('frame_init.gro', 'w') as g:

        # do something

    with open('frame_next.gro', 'w') as h:

        # do something

For those curious about what other things frame_next.gro is involved in, the answer is lots of calculations

python

asked Nov 12 '18 at 4:57

sneedshelp

asked Nov 12 '18 at 4:57

sneedshelp

asked Nov 12 '18 at 4:57

sneedshelp

asked Nov 12 '18 at 4:57

sneedshelp

asked Nov 12 '18 at 4:57

sneedshelp

This sounds like an XY problem. Can you explain what problem you are trying to solve with it?
– Klaus D.
Nov 12 '18 at 5:05

wow, this is actually really condescending. Thanks a lot.
– sneedshelp
Nov 12 '18 at 9:56

add a comment |

This sounds like an XY problem. Can you explain what problem you are trying to solve with it?
– Klaus D.
Nov 12 '18 at 5:05

wow, this is actually really condescending. Thanks a lot.
– sneedshelp
Nov 12 '18 at 9:56

This sounds like an XY problem. Can you explain what problem you are trying to solve with it?
– Klaus D.
Nov 12 '18 at 5:05

wow, this is actually really condescending. Thanks a lot.
– sneedshelp
Nov 12 '18 at 9:56

add a comment |

1 Answer
1

active

oldest

votes

You can do something like this:

a = 0

b = 1

print a + b



with open(__file__, 'r') as f:

    lines = f.read().split('n')

    val = int(lines[0].split(' = ')[-1])

    new_line = 'a = {}'.format(val+1)

    new_file = 'n'.join([new_line] + lines[1:])



with open(__file__, 'w') as f:

    f.write('n'.join([new_line] + lines[1:]))

From here:
How can I make a python script change itself?

edited Nov 12 '18 at 5:06

Klaus D.

7,37911834

answered Nov 12 '18 at 5:05

ChaosPredictor

1,91311624

add a comment |

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1 Answer
1

active

oldest

votes

1 Answer
1

active

oldest

votes

You can do something like this:

a = 0

b = 1

print a + b



with open(__file__, 'r') as f:

    lines = f.read().split('n')

    val = int(lines[0].split(' = ')[-1])

    new_line = 'a = {}'.format(val+1)

    new_file = 'n'.join([new_line] + lines[1:])



with open(__file__, 'w') as f:

    f.write('n'.join([new_line] + lines[1:]))

From here:
How can I make a python script change itself?

edited Nov 12 '18 at 5:06

Klaus D.

7,37911834

answered Nov 12 '18 at 5:05

ChaosPredictor

1,91311624

add a comment |

You can do something like this:

a = 0

b = 1

print a + b



with open(__file__, 'r') as f:

    lines = f.read().split('n')

    val = int(lines[0].split(' = ')[-1])

    new_line = 'a = {}'.format(val+1)

    new_file = 'n'.join([new_line] + lines[1:])



with open(__file__, 'w') as f:

    f.write('n'.join([new_line] + lines[1:]))

From here:
How can I make a python script change itself?

edited Nov 12 '18 at 5:06

Klaus D.

7,37911834

answered Nov 12 '18 at 5:05

ChaosPredictor

1,91311624

add a comment |

You can do something like this:

a = 0

b = 1

print a + b



with open(__file__, 'r') as f:

    lines = f.read().split('n')

    val = int(lines[0].split(' = ')[-1])

    new_line = 'a = {}'.format(val+1)

    new_file = 'n'.join([new_line] + lines[1:])



with open(__file__, 'w') as f:

    f.write('n'.join([new_line] + lines[1:]))

From here:
How can I make a python script change itself?

edited Nov 12 '18 at 5:06

Klaus D.

7,37911834

answered Nov 12 '18 at 5:05

ChaosPredictor

1,91311624

You can do something like this:

a = 0

b = 1

print a + b



with open(__file__, 'r') as f:

    lines = f.read().split('n')

    val = int(lines[0].split(' = ')[-1])

    new_line = 'a = {}'.format(val+1)

    new_file = 'n'.join([new_line] + lines[1:])



with open(__file__, 'w') as f:

    f.write('n'.join([new_line] + lines[1:]))

From here:
How can I make a python script change itself?

edited Nov 12 '18 at 5:06

Klaus D.

7,37911834

answered Nov 12 '18 at 5:05

ChaosPredictor

1,91311624

edited Nov 12 '18 at 5:06

Klaus D.

7,37911834

edited Nov 12 '18 at 5:06

Klaus D.

7,37911834

edited Nov 12 '18 at 5:06

Klaus D.

7,37911834

answered Nov 12 '18 at 5:05

ChaosPredictor

1,91311624

answered Nov 12 '18 at 5:05

ChaosPredictor

1,91311624

answered Nov 12 '18 at 5:05

ChaosPredictor

1,91311624

add a comment |

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