version – Page 18 – Tarik Billa

How do I compare version numbers in Python?

September 23, 2022 by Tarik

Use packaging.version.parse. >>> # pip install packaging >>> from packaging import version >>> version.parse(“2.3.1”) < version.parse(“10.1.2”) True >>> version.parse(“1.3.a4”) < version.parse(“10.1.2”) True >>> isinstance(version.parse(“1.3.a4”), version.Version) True >>> isinstance(version.parse(“1.3.xy123”), version.LegacyVersion) True >>> version.Version(“1.3.xy123”) Traceback (most recent call last): … packaging.version.InvalidVersion: Invalid version: ‘1.3.xy123’ packaging.version.parse is a third-party utility but is used by setuptools (so you probably … Read more

List of Java class file format major version numbers?

September 22, 2022 by Tarik

These come from the class version. If you try to load something compiled for java 6 in a java 5 runtime you’ll get the error, incompatible class version, got 50, expected 49. Or something like that. See here in byte offset 7 for more info. Additional info can also be found here.

Which version of MVC am I using?

September 21, 2022 by Tarik

Open web.config file and find the System.Web.Mvc assembly definition: assembly=”System.Web.Mvc, Version=3.0.0.0 …” It’s an MVC3 as you see. Via web you can use MvcDiagnostics which is similar to phpinfo() functionality in PHP.

How to update Ruby Version 2.0.0 to the latest version in Mac OSX Yosemite?

September 17, 2022 by Tarik

Open your terminal and run curl -sSL https://raw.githubusercontent.com/rvm/rvm/master/binscripts/rvm-installer | bash -s stable When this is complete, you need to restart your terminal for the rvm command to work. Now, run rvm list known This shows the list of versions of the ruby. Now, run rvm install ruby@latest to get the latest ruby version. If you … Read more

How to find out which package version is loaded in R?

September 13, 2022 by Tarik

You can use sessionInfo() to accomplish that. > sessionInfo() R version 2.15.0 (2012-03-30) Platform: x86_64-pc-linux-gnu (64-bit) locale: [1] LC_CTYPE=en_US.UTF-8 LC_NUMERIC=C LC_TIME=en_US.UTF-8 LC_COLLATE=en_US.UTF-8 [5] LC_MONETARY=en_US.UTF-8 LC_MESSAGES=en_US.UTF-8 LC_PAPER=C LC_NAME=C [9] LC_ADDRESS=C LC_TELEPHONE=C LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C attached base packages: [1] graphics grDevices utils datasets stats grid methods base other attached packages: [1] ggplot2_0.9.0 reshape2_1.2.1 plyr_1.7.1 loaded via a namespace … Read more

Which version of Python do I have installed?

September 13, 2022 by Tarik

python -V http://docs.python.org/using/cmdline.html#generic-options –version may also work (introduced in version 2.5)

How can I specify the required Node.js version in package.json?

September 12, 2022 by Tarik

You can set the engines field in your package.json and set requirements for either node or npm versions or both: “engines” : { “npm” : “>=7.0.0”, “node” : “>=16.0.0” } To enforce this via npm you need to create an .npmrc file (and commit it to the repository) and set the engines-strict option to true, … Read more

How can I check the system version of Android?

September 12, 2022 by Tarik

Example how to use it: if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.GINGERBREAD) { // only for gingerbread and newer versions }

How can the default node version be set using NVM?

September 12, 2022 by Tarik

(nvm maintainer here) nvm alias default 6.11.5 if you want it pegged to that specific version. You can also do nvm alias default 16. Either way, you’ll want to upgrade to the latest version of nvm (v0.33.11 as of this writing) $ nvm alias default 16.14.2 # nvm set default node.js version 16.14.2 $ node … Read more

Unsupported major.minor version 52.0 [duplicate]

September 9, 2022 by Tarik

The issue is because of Java version mismatch. Referring to the JVM specification the following are the major versions of classfiles for use with different versions of Java. (As of now, all versions support all previous versions.) Java SE version Major version 1.0.2 45 1.1 45 (Not a typo, same version) 1.2 46 1.3 47 … Read more