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Search Results
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Replies |
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Thread: solve ODE with sympy
Post: RE: solve ODE with sympy
| You don't need sympy to solve this. Solve it with pen and paper! |
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Gribouillis |
General Coding Help |
2 |
265 |
Dec-01-2023, 05:03 PM |
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Thread: numbers with decimals
Post: RE: numbers with decimals
| (Nov-29-2023, 07:35 AM)DPaul Wrote: Why don't they start by explaining the simplest example first ? "I want to divide x / y with a precision of 2 decimals".A part of the problem is what do you mean ... |
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Gribouillis |
Bar |
7 |
256 |
Dec-01-2023, 08:54 AM |
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Thread: Unpacking a dict with * or **
Post: RE: Unpacking a dict with * or **
| *x is not a valid Python expression, it cannot be evaluated. What would its value be? On the other hand func(*x) is a valid expression. There is no unary operator * or **. |
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Gribouillis |
General Coding Help |
4 |
215 |
Nov-30-2023, 02:51 PM |
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Thread: need to compare 2 values in a nested dictionary
Post: RE: need to compare 2 values in a nested dictionar...
| (Nov-29-2023, 08:30 PM)jss Wrote: i need to return True only if temperature <temperatureThresholdThe output that you want for the entire example dictionary is not clear. Can you explain it? |
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Gribouillis |
General Coding Help |
2 |
226 |
Nov-30-2023, 05:41 AM |
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Thread: use of shutil.copytree with ENOTDIR exception
Post: RE: use of shutil.copytree with ENOTDIR exception
| (Nov-29-2023, 09:48 AM)yan Wrote: I would like to make a script to copy an entire tree for testing (folder, sub-folders, files).
I need all but the files are too big in the source and I don't need w... |
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Gribouillis |
General Coding Help |
2 |
238 |
Nov-29-2023, 11:15 AM |
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Thread: How to remove some elements from an array in python?
Post: RE: How to remove some elements from an array in p...
| If the list is sorted, you can simply use bisect which performs a logarithmic search
import random
import bisect
# create sorted list of numbers
alist = sorted(random.choices(range(10000), k=4000))
... |
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Gribouillis |
General Coding Help |
9 |
407 |
Nov-28-2023, 08:35 AM |
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Thread: Why is 2/3 not just .666 repeating?
Post: RE: Why is 2/3 not just .666 repeating?
| Python floats are normally represented as 64 bits binary numbers, which means that they cannot represent faithfully more than 16 decimal digits. To see the capabilities of your Python print
sys.float_... |
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Gribouillis |
General Coding Help |
2 |
215 |
Nov-25-2023, 10:41 PM |
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Thread: module either imported by a command or itself run as a command
Post: RE: module either imported by a command or itself ...
| I would simply write the main code in a function, for example
# foo.py
def spam():
...
def eggs():
...
def main_task():
print('Running main task')
if __name__ == '__main__':
main_... |
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Gribouillis |
News and Discussions |
1 |
164 |
Nov-25-2023, 04:20 PM |
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Thread: TypeError: 'NoneType' object is not subscriptable
Post: RE: TypeError: 'NoneType' object is not subscripta...
| You are getting this message because result is None, so you are trying to access None[2] and Python does not allow that. |
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Gribouillis |
General Coding Help |
4 |
347 |
Nov-24-2023, 03:50 PM |
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Thread: physical problem
Post: RE: physical problem
| I added at line 16
print(sigma, n)and I ran the code with python -W error. The output shows where the warning occurs
Output:...
-0.7000000000000153 -0.6000000000000156
-0.7000000000000153 -0.500000000... |
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Gribouillis |
General Coding Help |
1 |
240 |
Nov-23-2023, 12:23 PM |
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Thread: Basic Coding Question: Exit Program Command?
Post: RE: Basic Coding Question: Exit Program Command?
| Use sys.exit(), and read the documentation of this function first. |
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Gribouillis |
General Coding Help |
3 |
250 |
Nov-19-2023, 05:37 PM |
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Thread: VSCode has become too invasive.
Post: RE: VSCode has become too invasive.
| I systematically throw away invasive software, however good they are. Too many companies take advantage of their defenseless customers. It is unfair. Use free software! |
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Gribouillis |
Bar |
6 |
426 |
Nov-15-2023, 05:19 AM |
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Thread: Can someone help me solve this programming problem?
Post: RE: Can someone help me solve this programming pro...
| (Nov-13-2023, 07:05 PM)SuchUmami Wrote: I want to ignore small changes in price that are 10% or lower than the original peak or trough. This 10% move could span over several rows, it's a cumulative ... |
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Gribouillis |
General Coding Help |
6 |
494 |
Nov-14-2023, 06:48 AM |
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Thread: How secure is the use of "secret" import?
Post: RE: How secure is the use of "secret" import?
| You could also consider using the keyring module to safely store passwords on the user's OS, but again, it will be safe only if no hacker can obtain the same privileges as the user using this service.... |
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Gribouillis |
General Coding Help |
12 |
719 |
Nov-09-2023, 07:57 AM |
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Thread: How secure is the use of "secret" import?
Post: RE: How secure is the use of "secret" import?
| (Nov-07-2023, 10:17 PM)ejwjohn Wrote: i was hoping that somewhere there was a solution that allowed you to store your "secrets" into the secure cloud then use an "import" function that allows you to... |
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Gribouillis |
General Coding Help |
12 |
719 |
Nov-08-2023, 07:03 AM |
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Thread: extract substring from a string before a word !!
Post: RE: extract substring from a string before a word ...
| If your object is a python dict D, just do
for item in D['data']:
print(item['title']) |
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Gribouillis |
General Coding Help |
3 |
296 |
Nov-07-2023, 10:15 PM |
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Thread: A working code to upload a file using sftp?
Post: RE: A working code to upload a file using sftp?
| Usually, I just spawn a subprocess that calls the lftp command. |
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Gribouillis |
Networking |
3 |
471 |
Nov-07-2023, 03:35 PM |
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Thread: Error Code: 1
Post: RE: Error Code: 1
| (Nov-07-2023, 12:54 PM)percyy30 Wrote: For some bizarre reason, I am getting the same result... any ideas?Uninstall the package that you installed first
pip uninstall http |
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Gribouillis |
General Coding Help |
13 |
991 |
Nov-07-2023, 12:57 PM |
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Thread: problem in using generator
Post: RE: problem in using generator
| In the first code, you are invoking gen()() and Python tells you that the object returned by the call gen() is not callable. |
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Gribouillis |
General Coding Help |
2 |
257 |
Nov-07-2023, 08:33 AM |
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Thread: importing a module given a path to the file
Post: RE: importing a module given a path to the file
| (Nov-02-2023, 07:37 PM)Skaperen Wrote: will it have a Python API?Yes it is pure Python code with an API and a command line interface. |
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Gribouillis |
News and Discussions |
8 |
672 |
Nov-02-2023, 08:46 PM |
