Differences

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--- basic_users_guide_xces_new [2025/01/24 15:06] – [Creating your own conda/mamba environment with the freva library] etorma
+++ basic_users_guide_xces_new [2025/02/12 09:42] (current) – [Creating your own conda/mamba environment with the freva library] etorma
@@ Line 188: / Line 188: @@
 </code>
 BUT be aware that there is currently NO API to call freva functionalities within R, so it will only work as an additional R kernel, nothing more.
+===== Creating your own conda/mamba environment with the freva library =====
+If you want to use freva as a python library alongside others (e.g. in a conda environment) then you can:
+  - install the package via pypi ''pip install freva'' or via conda/mamba ''mamba install -c conda-forge freva''
+  - add the environment config of XCES in your script, e.g.:
+<code python>
+import os,sys
+os.environ["EVALUATION_SYSTEM_CONFIG_FILE"] = "/work/bm1159/XCES/freva/evaluation_system.conf" # this is for the environment
+os.environ["EVALUATION_SYSTEM_CONFIG_DIR"] = "/work/bm1159/XCES/freva" # this is for the environment
+import freva
+</code>
+<WRAP round important>
+**NOTE**: since 2024 DKRZ does not allow access to ''default'' channels in conda [[https://legal.anaconda.com/policies/en/#terms-of-service| due to changes in Anaconda's terms of services]]. You need to make sure you will not use it or you will get an ''HTTP error'' message while trying to create an env. Options:
+  * use flag '' --override-channels'' so it does not search default.
+  * create ''$HOME/.condarc'' file with:
+<code>
+channels:
+  - conda-forge
+</code>
+  * (similar to 2):
+<code>
+# check what is currently set
+conda config --show channels
+# remove what you find
+conda config --remove channels defaults
+# add conda-forge
+conda config --add channels conda-forge
+</code>
+</WRAP>
 ===== Using XCES/Freva R/Python environment to locally install your own packages =====
+<WRAP round info>
+Not recommended! Your libraries would depend on the current Freva python/R environment that will eventually be updated and, hence, get obsolete.
+</WRAP>
 xces/Freva ships with its own R and Python environment, with some basic set of libraries included already. These environments can be used out-of-the-box. To check the R/Python version please:
@@ Line 258: / Line 296: @@
 You can get some more information on e.g. how to build packages locally (I adapted some of the above mentioned text from there) [[https://nesi.github.io/hpc_training/lessons/maui-and-mahuika/installing-packages-locally|here]].
-===== Creating your own conda/mamba environment with the freva library =====
-If, on the other hand you want to use freva as a python library alongside others (e.g. in a conda environment) then you can:
-  - install the package via pypi ''pip install freva'' or via conda/mamba ''mamba install -c conda-forge freva''
-  - add the environment config of XCES in your script, e.g.:
-<code python>
-import os,sys
-os.environ["EVALUATION_SYSTEM_CONFIG_FILE"] = "/work/bm1159/XCES/freva/evaluation_system.conf" # this is for the environment
-os.environ["EVALUATION_SYSTEM_CONFIG_DIR"] = "/work/bm1159/XCES/freva" # this is for the environment
-import freva
-</code>
-<WRAP round important>
-**NOTE**: since 2024 DKRZ does not allow access to ''default'' channels in conda [[https://legal.anaconda.com/policies/en/#terms-of-service| for reasons]]. You need to make sure you will not use it or you will get an ''HTTP error'' message while trying to create an env. Options:
-  * use flag '' --override-channels'' so it does not search default.
-  * create '$HOME.condarc' file with:
-<code>
-channels:
-  - conda-forge
-</code>
-  * (similar to 2):
-<code>
-# check what is currently set
-conda config --show channels
-# remove what you find
-conda config --remove channels defaults
-# add conda-forge
-conda config --add channels conda-forge
-</code>
-</WRAP>
 ===== Additional info =====