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--- conda_notes [2023/07/28 22:31] – [tasks] raju
+++ conda_notes [2024/04/07 02:01] – [environment file to install from a specific git branch] raju
@@ Line 38: / Line 38: @@
 ==== update conda ====
+<code>
+conda update -n base -c defaults conda --repodata-fn=repodata.json
+</code>
 <code>
 conda update -n <env_name> -c defaults --yes conda
@@ Line 221: / Line 225: @@
   * conda config - https://docs.conda.io/projects/conda/en/latest/commands/config.html
   * pinning packages - https://docs.conda.io/projects/conda/en/latest/user-guide/tasks/manage-pkgs.html#preventing-packages-from-updating-pinning
+==== which solver am I using? ====
+Use
+<code>
+conda config --show solver
+</code>
+or
+<code>
+conda config --show-sources
+</code>
+Sample output:
+<code>
+$ conda config --show solver
+solver: classic
+</code>
+<code>
+$ conda config --show solver
+solver: libmamba
+</code>
+<code>
+$conda config --show-sources
+==> C:\Users\root\.condarc <==
+solver: libmamba
+==> cmd_line <==
+debug: False
+json: False
+</code>
+See also:-
+  * https://conda.github.io/conda-libmamba-solver/getting-started/ - tells how to switch the default solver from classic to libmamba.
+==== when was a conda environment created? ====
+<code>
+conda env list | grep -v '^#' | perl -lane 'print $F[-1]' | xargs ls -lrt1d
+</code>
+For example
+<code>
+ % conda env list | grep -v '^#' | perl -lane 'print $F[-1]' | xargs ls -lrt1d
+drwxr-xr-x 10 rajulocal rajulocal 4096 Apr  4  2020 /opt/rajulocal/miniconda3/envs/rutils
+drwxr-xr-x 23 rajulocal rajulocal 4096 Nov  8  2021 /opt/rajulocal/miniconda3/envs/py39
+drwxr-xr-x 13 rajulocal rajulocal 4096 Jun  6  2022 /opt/rajulocal/miniconda3/envs/play_ground
+drwxr-xr-x 27 rajulocal rajulocal 4096 Feb 28  2023 /opt/rajulocal/miniconda3/envs/py310
+drwxr-xr-x 13 rajulocal rajulocal 4096 May 20  2023 /opt/rajulocal/miniconda3/envs/test_yfinance
+drwxr-xr-x 18 rajulocal rajulocal 4096 Jun 30 00:45 /opt/rajulocal/miniconda3
+drwxr-xr-x 27 rajulocal rajulocal 4096 Jul 11 01:07 /opt/rajulocal/miniconda3/envs/py311
+drwxr-xr-x 24 rajulocal rajulocal 4096 Nov 12 04:44 /opt/rajulocal/miniconda3/envs/market_data_processor
+</code>
+Ref: https://stackoverflow.com/questions/69109316/how-can-i-see-the-creation-dates-for-my-conda-environments
 ===== activate conda environment =====
@@ Line 325: / Line 384: @@
 tags | <nowiki>--find-links</nowiki>, pip config local packages, how to specify local repo location for pip packages, conda install pip package from a "local directory"
+==== specify package version with "git+https" in conda environment file ====
+<code>
+name: test_chessli
+channels:
+  - defaults
+dependencies:
+  - python=3.11
+  - pandas=1.5.3
+  - pip
+  - pip:
+    - chessli
+    - git+https://github.com/lervag/apy.git@v0.6.0#egg=apy
+</code>
+Ref:-
+  * https://stackoverflow.com/questions/47617552/how-can-i-specify-a-custom-git-branch-in-my-pipfile - where I found the answer
+  * https://github.com/lervag/apy/tags?after=v0.9.1 - versions of the api package < 0.9.1
+tags | pip "git+https" release, conda "git+https" release, conda git depend on a "specific release"
 ===== dummy =====