Jython but portable?
How do you use Jython Standalone Jar?
Do you have to "Intall"?
I usually use most standalone jars directly without intalling. And I want to
use this thing in Portable Apps, so I din't want to install anything.
Because it might end up in my Windows system and I won't know until I try it
at another computer (whish is hard during apandemic). I've got a lot of java
jars in protable apps that work fine.
i'm trying to use RDKit thru a call like
Java RDKIT.jar;jython.jar -Djava.library.path=/lib/
I probably should post this here, but I've outstayed my welcome on the java ng
asking very stupid questions
- = -
Vasos Panagiotopoulos, Columbia'81+, Reagan, Mozart, Pindus
blog: panix.com/~vjp2/ruminatn.htm - = - web: panix.com/~vjp2/vasos.htm
facebook.com/vasjpan2 - linkedin.com/in/vasjpan02 - biostrategist.com
---{Nothing herein constitutes advice. Everything fully disclaimed.}---
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RE: Seeking to convert a py timer app for my Moto E6
Interesting "Declaimed"? (-: I am still trying to see how this system works. I do not recall receiving that comment nor do I recall receiving a copy of the original message as I did with the second one. Whatever... That first message did have a suggestion. I will check it out. Thanks FootNote: If money does not grow on trees, then why do banks have branches? -Original Message- From: Python-list On Behalf Of Dennis Lee Bieber Sent: Saturday, July 18, 2020 12:04 PM To: [email protected] Subject: Re: Seeking to convert a py timer app for my Moto E6 On Sat, 18 Jul 2020 00:32:12 -0400, "Steve" declaimed the following: I have nothing new to add to your inquiry other than to confirm that I distinctly saw the first time you posted it, about a week ago, and that you did get a response at that time. https://groups.google.com/forum/#!topic/comp.lang.python/lCJtqyg0tps -- Wulfraed Dennis Lee Bieber AF6VN [email protected]://wlfraed.microdiversity.freeddns.org/ -- https://mail.python.org/mailman/listinfo/python-list -- https://mail.python.org/mailman/listinfo/python-list
Re: A Python installation help doc much more friendly to newcomers? [Was Re: help]
On 7/18/20 5:02 PM, dn via Python-list wrote: > - most docs seem to try to be 'all things to all people', whereas the > differences between platforms inevitably make the writing complicated > and the reading difficult to follow. Thus, consider separating entries > by OpSys and/or installation method. Like https://docs.python.org/3/using/index.html ? -- https://mail.python.org/mailman/listinfo/python-list
Re: Confused about np.polyfit()
On 19/07/2020 11:19, Dino wrote: > > Hi, I am looking at someone else's code trying to understand their use > of numpy.polyfit. > > My understanding was that you can use it to fit polynomials, but > apparently, the original author has used it for logarithmic and > exponential curves as well this way: > > Logarithmic > > def fit_model(self): > self.coefficients = np.polyfit(np.log(self.x), self.y, 1) > > Exponential > > def fit_model(self): > self.coefficients = np.polyfit(self.x, np.log(self.y), 1) > > is this an ok use of np.polyfit? Will it yield the expected result. > > Thanks It depends on what you expect the result to be. There's nothing inherently wrong with transforming variables before using least squares fitting. Whether it gives you the "best" estimates for the coefficients is a different issue. Duncan -- https://mail.python.org/mailman/listinfo/python-list
Request help w/pip install jq
Hi all, I've tried installing jq several times in my local environment, but it fails, saying it can't find a file that pip downloads. Here is the entire pip output: (base) C:\Users\edwal>pip install jq Collecting jq Downloading jq-1.0.2.tar.gz (57 kB) || 57 kB 703 kB/s Installing build dependencies ... done Getting requirements to build wheel ... done Preparing wheel metadata ... done Building wheels for collected packages: jq Building wheel for jq (PEP 517) ... error ERROR: Command errored out with exit status 1: command: 'C:\Users\edwal\anaconda3\envs\planet1\python.exe' 'C:\Users\edwal\anaconda3\envs\planet1\lib\site-packages\pip\_vendor\pep517\_in_process.py' build_wheel 'C:\Users\edwal\AppData\Local\Temp\tmpd0skcxv2' cwd: C:\Users\edwal\AppData\Local\Temp\pip-install-bwgrrs8c\jq Complete output (7 lines): running bdist_wheel running build running build_ext Downloading https://github.com/kkos/oniguruma/releases/download/v6.9.4/onig-6.9.4.tar.gz Downloaded https://github.com/kkos/oniguruma/releases/download/v6.9.4/onig-6.9.4.tar.gz Executing: ./configure CFLAGS=-fPIC --prefix=C:\Users\edwal\AppData\Local\Temp\pip-install-bwgrrs8c\jq\_deps\onig-install-6.9.4 error: [WinError 2] The system cannot find the file specified ERROR: Failed building wheel for jq Failed to build jq ERROR: Could not build wheels for jq which use PEP 517 and cannot be installed directly -- Ed Walser [email protected] 571.364.9618 -- https://mail.python.org/mailman/listinfo/python-list
Re: Need a Dynamic vlookup using python
Any solution possible for this. Please let me know -- https://mail.python.org/mailman/listinfo/python-list
Re: Request help w/pip install jq
On 2020-07-19 15:46, Ed Walser wrote: Hi all, I've tried installing jq several times in my local environment, but it fails, saying it can't find a file that pip downloads. Here is the entire pip output: (base) C:\Users\edwal>pip install jq Collecting jq Downloading jq-1.0.2.tar.gz (57 kB) || 57 kB 703 kB/s Installing build dependencies ... done Getting requirements to build wheel ... done Preparing wheel metadata ... done Building wheels for collected packages: jq Building wheel for jq (PEP 517) ... error ERROR: Command errored out with exit status 1: command: 'C:\Users\edwal\anaconda3\envs\planet1\python.exe' 'C:\Users\edwal\anaconda3\envs\planet1\lib\site-packages\pip\_vendor\pep517\_in_process.py' build_wheel 'C:\Users\edwal\AppData\Local\Temp\tmpd0skcxv2' cwd: C:\Users\edwal\AppData\Local\Temp\pip-install-bwgrrs8c\jq Complete output (7 lines): running bdist_wheel running build running build_ext Downloading https://github.com/kkos/oniguruma/releases/download/v6.9.4/onig-6.9.4.tar.gz Downloaded https://github.com/kkos/oniguruma/releases/download/v6.9.4/onig-6.9.4.tar.gz Executing: ./configure CFLAGS=-fPIC --prefix=C:\Users\edwal\AppData\Local\Temp\pip-install-bwgrrs8c\jq\_deps\onig-install-6.9.4 error: [WinError 2] The system cannot find the file specified ERROR: Failed building wheel for jq Failed to build jq ERROR: Could not build wheels for jq which use PEP 517 and cannot be installed directly I notice a mention of Anaconda in the traceback. Are you using Anaconda instead of the standard Python from python.org? If so, try using "conda" instead of "pip". -- https://mail.python.org/mailman/listinfo/python-list
Re: Confused about np.polyfit()
On 7/19/20 10:54 AM, duncan smith wrote: > On 19/07/2020 11:19, Dino wrote: >> Hi, I am looking at someone else's code trying to understand their use >> of numpy.polyfit. >> >> My understanding was that you can use it to fit polynomials, but >> apparently, the original author has used it for logarithmic and >> exponential curves as well this way: >> >> Logarithmic >> >> def fit_model(self): >> self.coefficients = np.polyfit(np.log(self.x), self.y, 1) >> >> Exponential >> >> def fit_model(self): >> self.coefficients = np.polyfit(self.x, np.log(self.y), 1) >> >> is this an ok use of np.polyfit? Will it yield the expected result. >> >> Thanks > It depends on what you expect the result to be. There's nothing > inherently wrong with transforming variables before using least squares > fitting. Whether it gives you the "best" estimates for the coefficients > is a different issue. > > Duncan Or, to state the results a bit more precisely, the 'Least Squres' fit is defined as finding the values of the adjustable values that minimizes the error between the provided 'measured' data, and the fitted curve, where the error is defined as the (possbily weighted) sum of the square of the difference between measured value and predicted value. One very useful property of least squares fitting to a polynomial is that you can get a closed form set of equations to solve to find the 'optimal' values. The primary effect of transforming the data before doing the fit is the error is now defined in terms of the difference of the transformed values, not the original values. In many cases, this is actually a reasonable way to define your error, so it works. -- Richard Damon -- https://mail.python.org/mailman/listinfo/python-list
Re: Request help w/pip install jq
On 7/19/20 8:46 AM, Ed Walser wrote: > Hi all, > > I've tried installing jq several times in my local environment, but it > fails, saying it can't find a file that pip downloads. Here is the entire > pip output: > > (base) C:\Users\edwal>pip install jq Don't install that way, do: python -m pip install jq or, since you seem to be on Windows, if you use the Python Launcher, do: py -m pip install jq That won't help your problem, though. Which is: > Building wheels for collected packages: jq > > Building wheel for jq (PEP 517) ... error pip tries to install a wheel first, if it didn't find a suitable one, it gets the source package (generally called an sdist) and tried to build it. This usually fails on Windows, because Windows doesn't come with compilers by default, and even if installed, often goes awry anyway because the setups never seem to match. If people want you to build for Windows yourself, there will usually be a detailed description of how to get it set up the right way. That's the general story. Now the bad news: https://pypi.org/project/jq/#files there are in fact no wheels for Windows here. And on the main page https://pypi.org/project/jq/ there is no mention of Windows at all, so the guess would be it's not supported. You might search if someone has gotten this working / packaged it for Anaconda, since you seem to be using that. If so, you'll want to install it with the conda command, not pip. See suitable instructions within the Anaconda website. -- https://mail.python.org/mailman/listinfo/python-list
Re: Confused about np.polyfit()
On 19/07/2020 16:11, Dino wrote: > On 7/19/2020 4:54 PM, duncan smith wrote: >> >> It depends on what you expect the result to be. There's nothing >> inherently wrong with transforming variables before using least squares >> fitting. Whether it gives you the "best" estimates for the coefficients >> is a different issue. > > Thanks a lot for this, Duncan. I guess I have to follow-up questions at > this point: > > 1) in which ways is this approach sub-optimal? > > 2) what's the "right" way to do it? > > Thank you > You'll have to read up a bit on ordinary least squares (e.g. https://en.wikipedia.org/wiki/Ordinary_least_squares). It is based on assumptions that might not necessarily hold for a given model / dataset. Depending on which assumptions are violated the estimates can be affected in different ways. It is usual to fit the model, then check the residuals to see if the assumptions (approximately) hold. If not, it might indicate a poor model fit or suggest fitting a transformed model (to estimate the same coefficients while satisfying the assumptions). e.g. For the latter case, Y = a + bX has the same coefficients as Y/X = a * 1/X + b but the latter regression might satisfy the assumption of constant variance for the errors. Regression analysis is a bit of an art, and it's a long time since I did any. Ordinary least squares is optimal in a certain sense when the assumptions hold. When they don't there's no single answer to what the best alternative is (unless it's employ a good statistician). Duncan -- https://mail.python.org/mailman/listinfo/python-list
Re: Request help w/pip install jq
On 2020-07-19 17:39, Mats Wichmann wrote: On 7/19/20 8:46 AM, Ed Walser wrote: Hi all, I've tried installing jq several times in my local environment, but it fails, saying it can't find a file that pip downloads. Here is the entire pip output: (base) C:\Users\edwal>pip install jq Don't install that way, do: python -m pip install jq or, since you seem to be on Windows, if you use the Python Launcher, do: py -m pip install jq That won't help your problem, though. Which is: Building wheels for collected packages: jq Building wheel for jq (PEP 517) ... error pip tries to install a wheel first, if it didn't find a suitable one, it gets the source package (generally called an sdist) and tried to build it. This usually fails on Windows, because Windows doesn't come with compilers by default, and even if installed, often goes awry anyway because the setups never seem to match. If people want you to build for Windows yourself, there will usually be a detailed description of how to get it set up the right way. That's the general story. Now the bad news: https://pypi.org/project/jq/#files there are in fact no wheels for Windows here. And on the main page https://pypi.org/project/jq/ there is no mention of Windows at all, so the guess would be it's not supported. You might search if someone has gotten this working / packaged it for Anaconda, since you seem to be using that. If so, you'll want to install it with the conda command, not pip. See suitable instructions within the Anaconda website. This page mentions Windows: https://stedolan.github.io/jq/download/ -- https://mail.python.org/mailman/listinfo/python-list
Re: Request help w/pip install jq
On 7/19/20 11:42 AM, Dennis Lee Bieber wrote: > On Sun, 19 Jul 2020 10:39:09 -0600, Mats Wichmann > declaimed the following: > >> there is no mention of Windows at all, so the guess would be it's not >> supported. >> > There is a whole open "issue" for that... > > https://github.com/mwilliamson/jq.py/issues/20 > > and given that the last entry was two years ago, by someone asking if > there'd been any progress... I wouldn't hold out much hope for a > pre-packaged solution. > > I also have some problem believing that the install of a different > package manager allowed an install/build, but it does show up on > https://chocolatey.org/packages/jq and is a fairly recent version (last > September). > choco is a fine and useful tool, I use it lots. but I think what's there is the base jq package, not the Python bindings which would presumably the topic of interest in a Python mailing list. -- https://mail.python.org/mailman/listinfo/python-list
