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cdo-1.5.7


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توضیحات

python bindings to CDO
ویژگی مقدار
سیستم عامل -
نام فایل cdo-1.5.7
نام cdo
نسخه کتابخانه 1.5.7
نگهدارنده []
ایمیل نگهدارنده []
نویسنده Ralf Mueller
ایمیل نویسنده stark.dreamdetective@gmail.com
آدرس صفحه اصلی https://code.mpimet.mpg.de/projects/cdo/wiki/Cdo%7Brbpy%7D
آدرس اینترنتی https://pypi.org/project/cdo/
مجوز -
# Cdo.{rb,py} - Use Ruby/Python to access the power of CDO [![Tests](https://circleci.com/gh/Try2Code/cdo-bindings/tree/master.svg?style=shield)](https://circleci.com/gh/Try2Code/cdo-bindings) Welcome to the scripting interfaces of [CDO](https://code.zmaw.de/projects/cdo/wiki)! This repository contains interfaces for [Ruby](http://www.ruby-lang.org) and [Python](https://www.python.org). If you are not sure, wether this is useful or not, please have a look at: [Why the .... should I use this???](https://code.zmaw.de/projects/cdo/wiki/Cdo%7Brbpy%7D#Why-the-) ## What's going on Currently this package is in a re-design phase. The target is a 2.0 release that will **not be compatible** with the exising release 1.5.x: * Write operator chains like methods chains with ```.``` as much as possible * hopefully reduce the number of ```kwargs``` keys * keep the Ruby and Python interface similar * possibly drop python-2.x support ... I am not sure when to do this best ## Installation Releases are distributed via [pypi](https://pypi.org/project/cdo) and [rubygems](https://rubygems.org/gems/cdo): * Ruby ``` gem install cdo (--user-install) ``` * Python ``` pip install cdo (--user) ``` ### Requirements Cdo.{rb,py} requires a working CDO binary and Ruby 2.x or Python 2.7/3.x **PLEASE NOTE: python-2.7 is unmaintained since January 2021** Many dependencies dropped support for 2.7 so I do manual testing with it,only. Multi-dimensional arrays (numpy for python, narray for ruby) require addtional netcdf-io modules. These are [scipy](https://docs.scipy.org/doc/scipy/reference/io.html) or [python-netcdf4](https://pypi.python.org/pypi/netCDF4) for python and [ruby-netcdf](https://rubygems.org/gems/ruby-netcdf) for ruby. Because scipy has some difficulties with netcdf, I dropped the support of it with release 1.5.0. Thx to Alexander Winkler there is also an IO option for XArray. ## Usage You can find a lot of examples in the unit tests for both languages. Here are the direct links to the [ruby tests](https://github.com/Try2Code/cdo-bindings/blob/master/ruby/test/test_cdo.rb) and the [python tests](https://github.com/Try2Code/cdo-bindings/blob/master/python/test/test_cdo.py). The following describes the basic features for both languages ### Run operators Befor calling operators, you have to create an object first: ```ruby cdo = Cdo.new #ruby ``` ```python cdo = Cdo() #python ``` Please check the documentation for constructor paramaters. I try to have equal interfaces in both languages for all public methods. ### Choose CDO binary By default the cdo-bindings use the 'cdo' binary found in your $PATH variable. To change that, you can * load a module before calling your script(```module command``` or another package manager like ```conda``` or ```spack```) * use the CDO environment variable to set the path to be used * use the python/ruby method ```cdo.setCdo('/path/to/the/CDO/executable/you/want')```. By this technique you can create different objects for different CDO versions. ### Debugging For debugging purpose, both interfaces provide a "debug" attribute. If it is set to a boolian true, the complete commands and the return values will be printed during execution ```ruby cdo.debug = true #ruby ``` ```python cdo.debug = True #python ``` The default is false of cause. #### File information ```ruby cdo.infov(input: ifile) #ruby cdo.showlevels(input: ifile) ``` ```python cdo.infov(input=ifile) #python cdo.showlevels(input=ifile) ``` #### Operators with user defined regular output files ```ruby cdo.timmin(input: ifile ,output: ofile) #ruby ``` ```python cdo.timmin(input = ifile,output = ofile) #python ``` By default the return value of each call is the name of the output files (no matter if its a temporary file or not) #### Use temporary output files If the output key is left out, one or more (depending on the operator) temporary files are generated and used as return value(s). In a regular script or a regularly closed interactive session, these files are removed at the end automatically. ```ruby tminFile = cdo.timmin(input: ifile) #ruby ``` ```python tminFile = cdo.timmin(input = ifile) #python ``` However these tempfiles remain if the session/script is killed with SIGKILL or if the bindings are used via Jupyter notebooks. Those session are usually long lasting and the heavy usage of tempfiles can easily fill the system tempdir - your system will become unusable then. The bindings offer two ways to cope with that * Set another directory for storing tempfiles with a constructor option and remove anything left in there when you experienced a crash or something like this ```python cdo = Cdo(tempdir=tempPath) #python cdo = Cdo.new(tempdir: tempPath) #ruby ``` * remove all tempfiles created by this or former usage of the cdo-bindings belonging to your current Unix-user with (taking into account user-defined ```tempdir``` from above ``` cdo.cleanTempDir() #python cdo.cleanTempDir #ruby ``` Alternatively you can use environment variables to set this. Python's and Ruby's ```tempfile``` libraries support the variables 'TMPDIR', 'TEMP' and 'TMP' in their current versions (python-3.8.2, ruby-2.7.0). This feature might be used by administrators to keep users from filling up system directories. #### Operators with parameter ```ruby cdo.remap([gridfile,weightfile],input: ifile, output: ofile) #ruby ``` ```python cdo.remap([gridfile,weightfile],input => ifile, output => ofile) #python ``` #### logging ```ruby cdo = Cdo.new(logging: true, logFile: 'cdo_commands.log') #ruby ``` ```python cdo = Cdo(logging=True, logFile='cdo_commands.log') #python ``` #### Set global CDO options ```ruby cdo.copy(input: ifile, output: ofile,options: "-f nc4") #ruby ``` ```python cdo.copy(input = ifile, output = ofile,options = "-f nc4") #python ``` #### Set environment variables ```ruby cdo.splitname(input: ifile.join(' '), output: 'splitTag', env: {'CDO_FILE_SUFFIX' => '.nc'}) #or cdo.env = {'CDO_FILE_SUFFIX' => '.nc'} ``` ```python cdo.splitname(input = ' '.join(ifiles), output = 'splitTag', env={"CDO_FILE_SUFFIX": ".nc"}) #or cdo.env = {'CDO_FILE_SUFFIX': '.nc'} ``` #### Return multi-dimension arrrays ```ruby t = cdo.fldmin(:input => ifile,:returnArray => true).var('T').get #rb, version < 1.2.0 t = cdo.fldmin(:input => ifile,:returnCdf => true).var('T').get #rb, version >= 1.2.0 t = cdo.fldmin(:input => ifile,:returnArray => 'T') #rb, version >= 1.2.0 ``` ```python t = cdo.fldmin(input = ifile,returnArray = True).variables['T'][:] #py, version < 1.2.0 t = cdo.fldmin(input = ifile,returnCdf = True).variables['T'][:] #py, version >= 1.2.0 t = cdo.fldmin(input = ifile,returnArray = 'T') #py, version >= 1.2.0 ``` Other options are so-called _masked arrays_ (use ```returnMaArray```) for ruby and python and XArray/XDataset for python-only: use ```returnXArray``` or ```returnXDataset``` for that. *) If you use scipy >= 0.14 as netcdf backend, you have to use following code instead to avoid possible segmentation faults: ```python cdf = cdo.fldmin(input = ifile,returnCdf = True) temperatures = cdf.variables['T'][:] ``` More examples can be found in test/cdo-examples.rb and [on the homepage](https://code.zmaw.de/projects/cdo/wiki/Cdo%7Brbpy%7D) ### Avoid re-processing If you do not want to re-compute files, you can set * the instance attribute 'forceOutput' to false: this will effect all later call of that instance **or** * the operator option 'forceOutput' to false: this will only effect this operator call of this instance For more information, please have a look at the unit tests. ## Support, Issues, Bugs, ... Please use the forum or ticket system of CDOs official web page: http://code.zmaw.de/projects/cdo ## Changelog * **1.5.6**: - slight adoptions for CDO-2.0.0 - limitted support for python-2.7: many other libs dropped support for it so I can only do limitted testing - new API: `cdo.config` holds a dictionary/hash with built-in CDO features (availble sind CDO-1.9.x), empty otherwise - removed cdo.hasLib() and cdo.libsVersion(): relied on unstable output of `cdo -V`. use cdo.config instead * **1.5.1(ruby-only)**: - fix some warnings with latest ruby release 2.7.x * **1.5.0(ruby)/1.5.3(python)** API change : - simplify the interface: - remove returnCdf from constructor, only use it with operator calls - remove methods setReturnArray/unsetReturnArray: I fear it's not used anyway, but 'returnArray' in each call - remove the optional dependency to scipy since it offers less functionality than netCDF4 and just blows up the code - new attributes: hasNetcdf, hasXArray for checking for the respective support - fix for cdo-1.9.6: allow non-zero return code for diff operators - the 1.5.2 relase for python is identical to 1.5.0 (was testing a new setup.py and version cannot be used twice in pipy) - 1.5.1 had building problems with pip based on python2 * **1.4.0** API change : - the ```operators``` atribute is no longer a list, but a dict (python) or hash (ruby) holding the number of output streams as value - finally fix #16 (missing tempfile generation for more than one output streams) - fix #19 (thx @pgierz for the input) * **1.3.6**: - bugfix for non-finding the CDO binary on some systems - fix hasCdo (py) - add hasCdo (rb) * **1.3.5**: - read/write support for XArray datasets - thx to @pinplex! - **drop ruby support for 1.9 and older** - **remove module interface from the ruby version** * **1.3.3**: - return arrays/lists of output files, which are created by split* operators suggestion from Karl-Hermann Wieners :ocean: **NOTE**: __this is done by simple globbing! Any other files with the appropriate name will be included in the list!__ - use [six](https://pypi.python.org/pypi/six) for python2 and 3 compatibility (thanks to @jvegasbsc) - drop full support of CDO version older then 1.5.4: undocumented operators in these version will not be callable - new keyword for operators which write to stdout: autoSplit. When set, each line will be split with the given value of the keyword to avoid the need for manual splitting. Nested return arrays of (outer) size 1 are flattened. See #11, thx to @beatorizu * **1.3.2** - improvened stdout/stderr handling, thx to jvegasbsc * **1.3.1** - fix environment handling per call (ruby version) * **1.3.0** - require ruby-2.* - support for upcomming CDO release 1.7.1 - improve loggin for ruby - introduce logging for python - unicode bugfix - thanks to Sebastian Illing (illing2005) [python-only] * **1.2.7** - Added class interface for ruby version 2.x, mainly for thread safety * **1.2.6** - bugfix for autocompletion in interactive usage [python-only] * **1.2.5** - bugfix for environment handling (Thanks philipp) [python-only] - add logging [ruby-only] * **1.2.4** - support python3: Thanks to @jhamman - bugfix for scipy: Thanks to @martinclaus - docu fixes: Thanks to @guziy - allow environment setting via call and object construction (see test_env in test_cdo.py) * **1.2.3** - bugfix release: adjust library/feature check to latest cdo-1.6.2 release * **1.2.2** - allow arrays in additions to strings for input argument - add methods for checking the IO libraries of CDO and their versions - optionally return None on error (suggestion from Alex Loew, python only) * **1.2.1** - new return option: Masked Arrays if the new keyword returnMaArray is given, its value is taken as variable name and a masked array wrt to its FillValues is returned contribution for python by Alex Loew - error handling: return stderr in case of non-zero return value + raise exception contribution for python from Estanislao Gonzalez - autocompletion and built-in documentation through help() for interactive use contribution from Estanislao Gonzalez [python] - Added help operator for displaying help interactively [ruby] * **1.2.0** API change: - Ruby now uses the same keys like the python interface, i.e. :input and :output instead of :in and :out - :returnArray will accept a variable name, for which the multidimesional array is returned * **1.1.0** API change: - new option :returnCdf : will return the netcdf file handle, which was formerly done via :returnArray - new options :force : if set to true the cdo call will be run even if the given output file is presen, default: false --- ## [Thanks to all contributors!](https://github.com/Try2Code/cdo-bindings/graphs/contributors) ## License Cdo.{rb,py} makes use of the BSD-3-clause license


زبان مورد نیاز

مقدار نام
>=2.7.0 Python


نحوه نصب


نصب پکیج whl cdo-1.5.7:

    pip install cdo-1.5.7.whl


نصب پکیج tar.gz cdo-1.5.7:

    pip install cdo-1.5.7.tar.gz