Change hardcoded values in python 3
0
I would like to change hardcoded values in my code. I would like the code to replace and change hardcoded values based on the number of times it runs. Beginning with:
x=1
The next time, after I run it, in the code itself, I would like to see in the code editor:
x=2
It will automatically change the values of the code without human input, so the third time its run:
x=3
And this is all done just by the script running, no human interaction whatsoever. Is there an easy way?
python-3.x hardcode
edited Nov 20 '18 at 9:19
Jebby
1,167618
asked Nov 20 '18 at 7:46
Durian JaykinDurian Jaykin
126
add a comment |
0
I would like to change hardcoded values in my code. I would like the code to replace and change hardcoded values based on the number of times it runs. Beginning with:
x=1
The next time, after I run it, in the code itself, I would like to see in the code editor:
x=2
It will automatically change the values of the code without human input, so the third time its run:
x=3
And this is all done just by the script running, no human interaction whatsoever. Is there an easy way?
python-3.x hardcode
edited Nov 20 '18 at 9:19
Jebby
1,167618
asked Nov 20 '18 at 7:46
Durian JaykinDurian Jaykin
126
One option would be to open in write mode your .py file at the end of your script, find the line you want to modify and replace the value.
– Patol75
Nov 20 '18 at 7:49
2
Possible, of course - most things are. Desirable? Not really. If this value needs to persist across runs, then look at storing it in a file which you can load from your script each time.
– SiHa
Nov 20 '18 at 7:50
Sure they are possible, but is there an easy way? I would like the values to be dynamic , like that 1 become 2. Let me rephrase it
– Durian Jaykin
Nov 20 '18 at 7:51
add a comment |
0
0
0
2
I would like to change hardcoded values in my code. I would like the code to replace and change hardcoded values based on the number of times it runs. Beginning with:
x=1
The next time, after I run it, in the code itself, I would like to see in the code editor:
x=2
It will automatically change the values of the code without human input, so the third time its run:
x=3
And this is all done just by the script running, no human interaction whatsoever. Is there an easy way?
python-3.x hardcode
edited Nov 20 '18 at 9:19
Jebby
1,167618
asked Nov 20 '18 at 7:46
Durian JaykinDurian Jaykin
126
I would like to change hardcoded values in my code. I would like the code to replace and change hardcoded values based on the number of times it runs. Beginning with:
x=1
The next time, after I run it, in the code itself, I would like to see in the code editor:
x=2
It will automatically change the values of the code without human input, so the third time its run:
x=3
And this is all done just by the script running, no human interaction whatsoever. Is there an easy way?
python-3.x hardcode
python-3.x hardcode
edited Nov 20 '18 at 9:19
Jebby
1,167618
asked Nov 20 '18 at 7:46
Durian JaykinDurian Jaykin
126
edited Nov 20 '18 at 9:19
Jebby
1,167618
asked Nov 20 '18 at 7:46
Durian JaykinDurian Jaykin
126
edited Nov 20 '18 at 9:19
Jebby
1,167618
edited Nov 20 '18 at 9:19
Jebby
1,167618
edited Nov 20 '18 at 9:19
Jebby
1,167618
1,167618
asked Nov 20 '18 at 7:46
Durian JaykinDurian Jaykin
126
asked Nov 20 '18 at 7:46
Durian JaykinDurian Jaykin
126
asked Nov 20 '18 at 7:46
Durian JaykinDurian Jaykin
126
126
One option would be to open in write mode your .py file at the end of your script, find the line you want to modify and replace the value.
– Patol75
Nov 20 '18 at 7:49
2
Possible, of course - most things are. Desirable? Not really. If this value needs to persist across runs, then look at storing it in a file which you can load from your script each time.
– SiHa
Nov 20 '18 at 7:50
Sure they are possible, but is there an easy way? I would like the values to be dynamic , like that 1 become 2. Let me rephrase it
– Durian Jaykin
Nov 20 '18 at 7:51
add a comment |
One option would be to open in write mode your .py file at the end of your script, find the line you want to modify and replace the value.
– Patol75
Nov 20 '18 at 7:49
2
Possible, of course - most things are. Desirable? Not really. If this value needs to persist across runs, then look at storing it in a file which you can load from your script each time.
– SiHa
Nov 20 '18 at 7:50
Sure they are possible, but is there an easy way? I would like the values to be dynamic , like that 1 become 2. Let me rephrase it
– Durian Jaykin
Nov 20 '18 at 7:51
One option would be to open in write mode your .py file at the end of your script, find the line you want to modify and replace the value.
– Patol75
Nov 20 '18 at 7:49
One option would be to open in write mode your .py file at the end of your script, find the line you want to modify and replace the value.
– Patol75
Nov 20 '18 at 7:49
2
2
Possible, of course - most things are. Desirable? Not really. If this value needs to persist across runs, then look at storing it in a file which you can load from your script each time.
– SiHa
Nov 20 '18 at 7:50
Possible, of course - most things are. Desirable? Not really. If this value needs to persist across runs, then look at storing it in a file which you can load from your script each time.
– SiHa
Nov 20 '18 at 7:50
Sure they are possible, but is there an easy way? I would like the values to be dynamic , like that 1 become 2. Let me rephrase it
– Durian Jaykin
Nov 20 '18 at 7:51
Sure they are possible, but is there an easy way? I would like the values to be dynamic , like that 1 become 2. Let me rephrase it
– Durian Jaykin
Nov 20 '18 at 7:51
add a comment |
2 Answers
2
active
oldest
votes
0
You can simply write to a well-defined auxiliary file:
# define storage file path based on script path (__file__)
import os
counter_path = os.path.join(os.path.dirname(__file__), 'my_counter')
# start of script - read or initialise counter
try:
with open(counter_path, 'r') as count_in:
counter = int(count_in.read())
except FileNotFoundError:
counter = 0
print('counter =', counter)
# end of script - write new counter
with open(counter_path, 'w') as count_out:
count_out.write(str(counter + 1))
This will store an auxiliary file next to your script, which contains the counter verbatim.
$ python3 test.py
counter = 0
$ python3 test.py
counter = 1
$ python3 test.py
counter = 2
$ cat my_counter
3
answered Nov 20 '18 at 8:29
MisterMiyagiMisterMiyagi
7,8222444
add a comment |
2
Use config parser to store run counter in a file
import configparser
config = configparser.ConfigParser()
config_fn = 'program.ini'
try:
config.read(config_fn)
run_counter = int(config.get('Main', 'run_counter'))
except configparser.NoSectionError:
run_counter = 0
config.add_section('Main')
config.set('Main', 'run_counter', str(run_counter))
with open(config_fn, 'w') as config_file:
config.write(config_file)
run_counter += 1
print("Run counter {}".format(run_counter))
config.set('Main', 'run_counter', str(run_counter))
with open(config_fn, 'w') as config_file:
config.write(config_file)
answered Nov 20 '18 at 8:03
Pawel StradowskiPawel Stradowski
19419
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
0
You can simply write to a well-defined auxiliary file:
# define storage file path based on script path (__file__)
import os
counter_path = os.path.join(os.path.dirname(__file__), 'my_counter')
# start of script - read or initialise counter
try:
with open(counter_path, 'r') as count_in:
counter = int(count_in.read())
except FileNotFoundError:
counter = 0
print('counter =', counter)
# end of script - write new counter
with open(counter_path, 'w') as count_out:
count_out.write(str(counter + 1))
This will store an auxiliary file next to your script, which contains the counter verbatim.
$ python3 test.py
counter = 0
$ python3 test.py
counter = 1
$ python3 test.py
counter = 2
$ cat my_counter
3
answered Nov 20 '18 at 8:29
MisterMiyagiMisterMiyagi
7,8222444
add a comment |
0
You can simply write to a well-defined auxiliary file:
# define storage file path based on script path (__file__)
import os
counter_path = os.path.join(os.path.dirname(__file__), 'my_counter')
# start of script - read or initialise counter
try:
with open(counter_path, 'r') as count_in:
counter = int(count_in.read())
except FileNotFoundError:
counter = 0
print('counter =', counter)
# end of script - write new counter
with open(counter_path, 'w') as count_out:
count_out.write(str(counter + 1))
This will store an auxiliary file next to your script, which contains the counter verbatim.
$ python3 test.py
counter = 0
$ python3 test.py
counter = 1
$ python3 test.py
counter = 2
$ cat my_counter
3
answered Nov 20 '18 at 8:29
MisterMiyagiMisterMiyagi
7,8222444
add a comment |
0
0
0
You can simply write to a well-defined auxiliary file:
# define storage file path based on script path (__file__)
import os
counter_path = os.path.join(os.path.dirname(__file__), 'my_counter')
# start of script - read or initialise counter
try:
with open(counter_path, 'r') as count_in:
counter = int(count_in.read())
except FileNotFoundError:
counter = 0
print('counter =', counter)
# end of script - write new counter
with open(counter_path, 'w') as count_out:
count_out.write(str(counter + 1))
This will store an auxiliary file next to your script, which contains the counter verbatim.
$ python3 test.py
counter = 0
$ python3 test.py
counter = 1
$ python3 test.py
counter = 2
$ cat my_counter
3
answered Nov 20 '18 at 8:29
MisterMiyagiMisterMiyagi
7,8222444
You can simply write to a well-defined auxiliary file:
# define storage file path based on script path (__file__)
import os
counter_path = os.path.join(os.path.dirname(__file__), 'my_counter')
# start of script - read or initialise counter
try:
with open(counter_path, 'r') as count_in:
counter = int(count_in.read())
except FileNotFoundError:
counter = 0
print('counter =', counter)
# end of script - write new counter
with open(counter_path, 'w') as count_out:
count_out.write(str(counter + 1))
This will store an auxiliary file next to your script, which contains the counter verbatim.
$ python3 test.py
counter = 0
$ python3 test.py
counter = 1
$ python3 test.py
counter = 2
$ cat my_counter
3
answered Nov 20 '18 at 8:29
MisterMiyagiMisterMiyagi
7,8222444
edited Nov 20 '18 at 8:36
answered Nov 20 '18 at 8:29
MisterMiyagiMisterMiyagi
7,8222444
answered Nov 20 '18 at 8:29
MisterMiyagiMisterMiyagi
7,8222444
answered Nov 20 '18 at 8:29
MisterMiyagiMisterMiyagi
7,8222444
7,8222444
add a comment |
add a comment |
2
Use config parser to store run counter in a file
import configparser
config = configparser.ConfigParser()
config_fn = 'program.ini'
try:
config.read(config_fn)
run_counter = int(config.get('Main', 'run_counter'))
except configparser.NoSectionError:
run_counter = 0
config.add_section('Main')
config.set('Main', 'run_counter', str(run_counter))
with open(config_fn, 'w') as config_file:
config.write(config_file)
run_counter += 1
print("Run counter {}".format(run_counter))
config.set('Main', 'run_counter', str(run_counter))
with open(config_fn, 'w') as config_file:
config.write(config_file)
answered Nov 20 '18 at 8:03
Pawel StradowskiPawel Stradowski
19419
add a comment |
2
Use config parser to store run counter in a file
import configparser
config = configparser.ConfigParser()
config_fn = 'program.ini'
try:
config.read(config_fn)
run_counter = int(config.get('Main', 'run_counter'))
except configparser.NoSectionError:
run_counter = 0
config.add_section('Main')
config.set('Main', 'run_counter', str(run_counter))
with open(config_fn, 'w') as config_file:
config.write(config_file)
run_counter += 1
print("Run counter {}".format(run_counter))
config.set('Main', 'run_counter', str(run_counter))
with open(config_fn, 'w') as config_file:
config.write(config_file)
answered Nov 20 '18 at 8:03
Pawel StradowskiPawel Stradowski
19419
add a comment |
2
2
2
Use config parser to store run counter in a file
import configparser
config = configparser.ConfigParser()
config_fn = 'program.ini'
try:
config.read(config_fn)
run_counter = int(config.get('Main', 'run_counter'))
except configparser.NoSectionError:
run_counter = 0
config.add_section('Main')
config.set('Main', 'run_counter', str(run_counter))
with open(config_fn, 'w') as config_file:
config.write(config_file)
run_counter += 1
print("Run counter {}".format(run_counter))
config.set('Main', 'run_counter', str(run_counter))
with open(config_fn, 'w') as config_file:
config.write(config_file)
answered Nov 20 '18 at 8:03
Pawel StradowskiPawel Stradowski
19419
Use config parser to store run counter in a file
import configparser
config = configparser.ConfigParser()
config_fn = 'program.ini'
try:
config.read(config_fn)
run_counter = int(config.get('Main', 'run_counter'))
except configparser.NoSectionError:
run_counter = 0
config.add_section('Main')
config.set('Main', 'run_counter', str(run_counter))
with open(config_fn, 'w') as config_file:
config.write(config_file)
run_counter += 1
print("Run counter {}".format(run_counter))
config.set('Main', 'run_counter', str(run_counter))
with open(config_fn, 'w') as config_file:
config.write(config_file)
answered Nov 20 '18 at 8:03
Pawel StradowskiPawel Stradowski
19419
answered Nov 20 '18 at 8:03
Pawel StradowskiPawel Stradowski
19419
answered Nov 20 '18 at 8:03
Pawel StradowskiPawel Stradowski
19419
answered Nov 20 '18 at 8:03
Pawel StradowskiPawel Stradowski
19419
19419
add a comment |
add a comment |
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One option would be to open in write mode your .py file at the end of your script, find the line you want to modify and replace the value.
– Patol75
Nov 20 '18 at 7:49
2
Possible, of course - most things are. Desirable? Not really. If this value needs to persist across runs, then look at storing it in a file which you can load from your script each time.
– SiHa
Nov 20 '18 at 7:50
Sure they are possible, but is there an easy way? I would like the values to be dynamic , like that 1 become 2. Let me rephrase it
– Durian Jaykin
Nov 20 '18 at 7:51