Re: syntax question
>From the Python documentation at https://docs.python.org/3/tutorial/controlflow.html#lambda-expressions > Small anonymous functions can be created with the lambda <https://docs.python.org/3/reference/expressions.html#lambda> keyword. This function returns the sum of its two arguments: lambda a, b: a+b. Lambda functions can be used wherever function objects are required. They are syntactically restricted to a single expression. Semantically, they are just syntactic sugar for a normal function definition. Thus, in your case the lambda is equivalent to: def line(x): return x + 3 Cheers, Timo On Sat, Jun 2, 2018 at 1:12 PM Sharan Basappa wrote: > Can anyone please tell me what the following line in a python program does: > > line = lambda x: x + 3 > > I have pasted the entire code below for reference: > > from scipy.optimize import fsolve > import numpy as np > line = lambda x: x + 3 > solution = fsolve(line, -2) > print solution > -- > https://mail.python.org/mailman/listinfo/python-list > -- *Timo Furrer* https://github.com/timofurrer tuxt...@gmail.com -- https://mail.python.org/mailman/listinfo/python-list
Re:
Can you be more specific. What did you try? In which environment? What was the error message you got? On Sun, Jun 10, 2018 at 6:32 PM sagar daya wrote: > Couldn't install any module from pip > Plz help??? > -- > https://mail.python.org/mailman/listinfo/python-list > -- *Timo Furrer* https://github.com/timofurrer tuxt...@gmail.com -- https://mail.python.org/mailman/listinfo/python-list
Re: Daemon strategy
As Ben already said .. either deploy to Unix systems or use subprocess.Popen and detach the process: from subprocess import Popenfrom win32process import DETACHED_PROCESS Popen(["YOURPROCESS"],creationflags=DETACHED_PROCESS,shell=True) On Fri, Feb 5, 2016 at 10:52 AM, Ben Finney wrote: > paul.hermeneu...@gmail.com writes: > > > It appears that python-deamon would be exactly what I need. Alas, > > appears not to run on Windows. If I am wrong about that, please tell > > me. > > You're correct that ‘python-daemon’ uses Unix facilities to create a > well-behaved Unix daemon process. > > Since MS Windows lacks those facilities, ‘python-daemon’ can't use them. > > > To what tools should I turn? > > If what you need – the support to create a Unix daemon process – is > available only on Unix by definition, it seems you'll need to deploy to > Unix. > > > I am not eager to produce a "service" on Windows unless it cannot be > > avoided. > > Agreed :-) > > -- > \ “Wrinkles should merely indicate where smiles have been.” —Mark | > `\Twain, _Following the Equator_ | > _o__) | > Ben Finney > > -- > https://mail.python.org/mailman/listinfo/python-list > -- *Timo Furrer* https://github.com/timofurrer tuxt...@gmail.com -- https://mail.python.org/mailman/listinfo/python-list
