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Project Description

A Python module for parsing Fortran namelist files

Documentation: http://f90nml.readthedocs.org/en/latest/

About f90nml

f90nml is a Python module that provides a simple interface for the reading, writing, and the general manipulation of Fortran namelist files.

A namelist file is parsed and converted into an Namelist object, which behaves like a standard Python dict. Values are converted from Fortran data types to equivalent primitive Python types.

Quick usage guide

To read a namelist file sample.nml which contains the following namelists:

&config_nml
   input = 'wind.nc'
   steps = 864
   layout = 8, 16
   visc = 1e-4
   use_biharmonic = .false.
/

we would use the following script:

import f90nml
nml = f90nml.read('sample.nml')

which would would point nml to the following dict:

nml = {'config_nml':
         {'input': 'wind.nc',
          'steps': 864,
          'layout': [8, 16],
          'visc': 0.0001
          'use_biharmonic': False
         }
      }

File objects can also be used as inputs:

with open('sample.nml') as nml_file:
    nml = f90nml.read(nml_file)

To modify one of the values, say steps, and save the output, just manipulate the nml contents and write to disk using the write function:

nml['config_nml']['steps'] = 432
nml.write('new_sample.nml')

Namelists can also be saved to file objects:

with open('target.nml') as nml_file:
   nml.write(nml_file)

To modify a namelist but preserve its comments and formatting, create a namelist patch and apply it to a target file using the patch function:

patch_nml = {'config_nml': {'visc': 1e-6}}
nml.patch('sample.nml', 'new_sample.nml', patch_nml)

Installation

f90nml is available on PyPI and can be installed via pip:

$ pip install f90nml

It is also available on Arch Linux via the AUR:

$ git clone https://aur.archlinux.org/python-f90nml.git
$ cd python-f90nml
$ makepkg -sri

f90nml is not yet available on other Linux distributions.

The latest version of f90nml can be installed from source:

$ git clone https://github.com/marshallward/f90nml.git
$ cd f90nml
$ python setup.py install

Users without install privileges can append the --user flag to setup.py:

$ python setup.py --user install
Release History

Release History

0.19

This version

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0.18

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0.17

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0.16

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0.15

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0.14

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0.13.post1

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0.13

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0.12

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0.11

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0.10.2

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0.10.1

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0.10

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0.9.1

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0.9

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0.8

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0.7

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0.6.2

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0.6.1

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0.6

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0.5

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0.4

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0.3

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0.2.1

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0.2

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0.1

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Download Files

Download Files

TODO: Brief introduction on what you do with files - including link to relevant help section.

File Name & Checksum SHA256 Checksum Help Version File Type Upload Date
f90nml-0.19.tar.gz (29.1 kB) Copy SHA256 Checksum SHA256 Source Jun 6, 2016

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