Re: CWD + relative path + import name == resultant relative path?
Dan Stromberg wrote at 2021-10-29 16:38 -0700: >Is there a predefined function somewhere that can accept the 3 things on >the LHS in the subject line, and give back a resultant relative path - >relative to the unchanged CWD? > >To illustrate, imagine: >1) You're sitting in /home/foo/coolprog >2) You look up the AST for /home/foo/coolprog/a/b/c.py >3) /home/foo/coolprog/a/b/c.py has a relative import of ..blah Look at the functions provided by `os.path`. Maybe, you do not need relative path: look at `importlib` (which also supports import via absolute paths). -- https://mail.python.org/mailman/listinfo/python-list
Re: Python script seems to stop running when handling very large dataset
Shaozhong SHI wrote at 2021-10-29 23:42 +0100: >Python script works well, but seems to stop running at a certain point when >handling very large dataset. > >Can anyone shed light on this? Some algorithms have non linear runtime. For example, it is quite easy to write code with quadratic runtime in Python: s = "" for x in ...: s += f(x) You will see the problem only for large data sets. -- https://mail.python.org/mailman/listinfo/python-list
Re: Python script seems to stop running when handling very large dataset
On Saturday, 30 October 2021, Dieter Maurer wrote: > Shaozhong SHI wrote at 2021-10-29 23:42 +0100: > >Python script works well, but seems to stop running at a certain point > when > >handling very large dataset. > > > >Can anyone shed light on this? > > Some algorithms have non linear runtime. > > > For example, it is quite easy to write code with > quadratic runtime in Python: > s = "" > for x in ...: s += f(x) > You will see the problem only for large data sets. > Has anyone compared this with iterrow? which looping option is faster? Regards, David -- https://mail.python.org/mailman/listinfo/python-list
