from fluiddoc import mock_modules

mock_modules(('nbstripout', 'scipy', 'scipy.fftpack', 'scipy.interpolate',
              'skimage', ''))

Main features of the fluiddyn package

We here give an overview of the main features of the package. Fluiddyn contains pure python code useful when developing and using fluiddyn packages. It is like the Ali Baba’s cave of the fluiddyn project. Here, we just show typical import commands and point towards pages in the documentation.

Just importing the main package can be useful:

import fluiddyn as fld
<function fluiddyn.util.util.ipydebug()>

is a function to debug code with ipython (simpler than with pdb or ipdb):

Subpackage fluiddyn.output

The subpackage fluiddyn.output (“scientific outputs” like figures and movies) uses (and imports) matplotlib.

from fluiddyn.output import show, set_rcparams, gradient_colors


The subpackage (“input/output”) contains modules to save and load data in many formats:

from import (
    binary, txt, mycsv, hdf5, digiflow, dantec, davis, multitiff, in_py, image)
from import query_yes_no, query, query_number
from import MultiFile

There is also a function to disable the standard output which we use a lot in unittests.

from import stdout_redirected


This package also contains the code of a very simple utility to dump hdf5 and netcdf files (without dependency in the netcdf library and in the program h5dump)

from import dump_h5_file, dump_nc_file
! fluiddump -h
usage: fluiddump [-h] [-pv] file

Utility to print the hierarchy of hdf5 and netcdf files.

positional arguments:
  file                  str indicating which file has to be dump.

optional arguments:
  -h, --help            show this help message and exit
  -pv, --print-variables
                        also print the content of the variables

Subpackage fluiddyn.util

The subpackage fluiddyn.util contains functions and modules to do very different things:

from fluiddyn.util import (
    time_as_str, get_memory_usage, print_memory_usage,
    import_class, is_run_from_ipython)

# very simple use of mpi (no dependency on mpi4py if the process is run without mpi)
from fluiddyn.util import mpi

# storing parameters
from fluiddyn.util.paramcontainer import ParamContainer
from fluiddyn.util.paramcontainer_gui import QtParamContainer

# handling series of arrays in files
from fluiddyn.util.serieofarrays import SerieOfArraysFromFiles, SeriesOfArrays

# "tickers"
from fluiddyn.util.timer import Timer, TimerIrregular

# daemon
from fluiddyn.util.daemons import DaemonThread, DaemonProcess

# emails
from fluiddyn.util import mail

# logging
from fluiddyn.util.logger import Logger
from fluiddyn.util import terminal_colors
from fluiddyn.util import config_logging

# matlab to py (command line utility fluidmat2py)
from fluiddyn.util.matlab2py import cleanmat, mat2wrongpy

fluidinfo: gather information on your Python environment

from fluiddyn.util import info
!fluidinfo -h
usage: fluidinfo [-h] [-s] [-o OUTPUT_DIR] [-v] [-W]

Displays all important information related to software and hardware. It also
includes detailed information such as currently installed FluidDyn packages,
other third-party packages, C compiler, MPI and NumPy configuration.

>>> fluidinfo  # print package, Python, software and hardware info
>>> fluidinfo -v  # also print basic Numpy info
>>> fluidinfo -vv  # also print detailed Numpy info
>>> fluidinfo -s  # save all information into sys_info.xml
>>> fluidinfo -o /tmp  # save all information into /tmp/sys_info.xml

.. todo::
    Use a YAML package to print.

optional arguments:
  -h, --help            show this help message and exit
  -s, --save            saves system information to an xml file (sys_info.xml)
  -o OUTPUT_DIR, --output-dir OUTPUT_DIR
                        save to directory
  -v, --verbosity       increase output verbosity (max: -vvv)
  -W, --warnings        show warnings

Subpackage fluiddyn.calcul

The subpackage fluiddyn.calcul provides helpers for simple numerical computing.

from fluiddyn.calcul import easypyfft
from fluiddyn.calcul import sphericalharmo
/home/docs/checkouts/ UserWarning: ImportError shtns
  warn("ImportError shtns")
from fluiddyn.calcul import signal
from fluiddyn.calcul.setofvariables import SetOfVariables

Subpackage fluiddyn.clusters

The subpackage fluiddyn.clusters provides classes helping to use computer clusters.

from fluiddyn.clusters.legi import Calcul8 as Cluster
Useful commands
oarsub -S
oarstat -u
oardel $JOB_ID
oarsub -C $JOB_ID
from fluiddyn.clusters.cines import Occigen as Cluster
Useful commands

squeue -u $USER
scontrol hold
scontrol release

Package fluiddoc: helping to build nice web documentations

import fluiddoc
<function fluiddoc.mock_modules(modules)>
from fluiddoc.ipynb_maker import ipynb_to_rst