+
+
+Table of Contents
+ +
+
+Getting information about Python(3) libraries
+
+
+
+
+
+Getting the list of installed packages and their version
+
+
++https://stackoverflow.com/questions/20180543/how-to-check-version-of-python-modules +
+
+
+
+pip3 freeze ++
+asn1crypto==0.24.0 +attrs==17.4.0 +bcrypt==3.1.4 +beautifulsoup4==4.6.0 +bleach==2.1.3 +... +pandas==0.22.0 +pandocfilters==1.4.2 +paramiko==2.4.0 +patsy==0.5.0 +pexpect==4.2.1 +... +traitlets==4.3.2 +tzlocal==1.5.1 +urllib3==1.22 +wcwidth==0.1.7 +webencodings==0.5 ++ +
+
+
+pip3 show pandas +echo " " +pip3 show statsmodels ++
+Name: pandas +Version: 0.22.0 +Summary: Powerful data structures for data analysis, time series,and statistics +Home-page: http://pandas.pydata.org +Author: None +Author-email: None +License: BSD +Location: /usr/lib/python3/dist-packages +Requires: + +Name: statsmodels +Version: 0.9.0 +Summary: Statistical computations and models for Python +Home-page: http://www.statsmodels.org/ +Author: None +Author-email: None +License: BSD License +Location: /home/alegrand/.local/lib/python3.6/site-packages +Requires: patsy, pandas ++ +
+
+++
+
+
+How to list imported modules?
+
+
+
+Inspiring from StackOverflow, here is a simple function that lists
+loaded package (that have a __version__ attribute, which is
+unfortunately not completely standard).
+
+
+
+def print_imported_modules(): + import sys + for name,val in sorted(sys.modules.items()): + if(hasattr(val, '__version__')): + print(val.__name__, val.__version__) + +print("**** Package list in the beginning ****"); +print_imported_modules() +print("**** Package list after loading pandas ****"); +import pandas +print_imported_modules() + ++
+**** Package list in the beginning **** +**** Package list after loading pandas **** +_csv 1.0 +_ctypes 1.1.0 +decimal 1.70 +argparse 1.1 +csv 1.0 +ctypes 1.1.0 +cycler 0.10.0 +dateutil 2.7.3 +decimal 1.70 +distutils 3.6.5rc1 +ipaddress 1.0 +json 2.0.9 +logging 0.5.1.2 +matplotlib 2.1.1 +numpy 1.14.5 +numpy.core 1.14.5 +numpy.core.multiarray 3.1 +numpy.core.umath b'0.4.0' +numpy.lib 1.14.5 +numpy.linalg._umath_linalg b'0.1.5' +pandas 0.22.0 +_libjson 1.33 +platform 1.0.8 +pyparsing 2.2.0 +pytz 2018.5 +re 2.2.1 +six 1.11.0 +urllib.request 3.6 +zlib 1.0 ++
+
+Setting up an environment with pip
+
+
++The easiest way to go is as follows: +
+
+
+
+pip3 freeze > requirements.txt # to obtain the list of packages with their version +pip3 install -r requirements.txt # to install the previous list of packages, possibly on an other machine ++
+If you want to have several installed python environments, you may +want to use Pipenv. I doubt it allows to track correctly FORTRAN or C +dynamic libraries that are wrapped by Python. +
+
+
+Getting information about R libraries
+
+
+
+The best way seems to be to rely on the devtools package.
+
+
+
+sessionInfo() +devtools::session_info() ++
+R version 3.5.1 (2018-07-02) +Platform: x86_64-pc-linux-gnu (64-bit) +Running under: Debian GNU/Linux buster/sid + +Matrix products: default +BLAS: /usr/lib/x86_64-linux-gnu/blas/libblas.so.3.8.0 +LAPACK: /usr/lib/x86_64-linux-gnu/lapack/liblapack.so.3.8.0 + +locale: + [1] LC_CTYPE=fr_FR.UTF-8 LC_NUMERIC=C + [3] LC_TIME=fr_FR.UTF-8 LC_COLLATE=fr_FR.UTF-8 + [5] LC_MONETARY=fr_FR.UTF-8 LC_MESSAGES=fr_FR.UTF-8 + [7] LC_PAPER=fr_FR.UTF-8 LC_NAME=C + [9] LC_ADDRESS=C LC_TELEPHONE=C +[11] LC_MEASUREMENT=fr_FR.UTF-8 LC_IDENTIFICATION=C + +attached base packages: +[1] stats graphics grDevices utils datasets methods base + +loaded via a namespace (and not attached): +[1] compiler_3.5.1 +Session info ------------------------------------------------------------------ + setting value + version R version 3.5.1 (2018-07-02) + system x86_64, linux-gnu + ui X11 + language (EN) + collate fr_FR.UTF-8 + tz Europe/Paris + date 2018-08-01 + +Packages ---------------------------------------------------------------------- + package * version date source + base * 3.5.1 2018-07-02 local + compiler 3.5.1 2018-07-02 local + datasets * 3.5.1 2018-07-02 local + devtools 1.13.6 2018-06-27 CRAN (R 3.5.1) + digest 0.6.15 2018-01-28 CRAN (R 3.5.0) + graphics * 3.5.1 2018-07-02 local + grDevices * 3.5.1 2018-07-02 local + memoise 1.1.0 2017-04-21 CRAN (R 3.5.1) + methods * 3.5.1 2018-07-02 local + stats * 3.5.1 2018-07-02 local + utils * 3.5.1 2018-07-02 local + withr 2.1.2 2018-03-15 CRAN (R 3.5.0) ++ +
+Some actually advocate that writing a reproducible research compendium +can be done by writing an R package. Those of you willing to have a +clean R dependency management should thus have a look at Packrat. +
+