92 lines
3.0 KiB
Python
92 lines
3.0 KiB
Python
import os
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import pandas as pd
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from pathlib import Path
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from pypsa.descriptors import Dict
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from pypsa.components import components, component_attrs
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import logging
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logger = logging.getLogger(__name__)
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def override_component_attrs(directory):
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"""Tell PyPSA that links can have multiple outputs by
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overriding the component_attrs. This can be done for
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as many buses as you need with format busi for i = 2,3,4,5,....
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See https://pypsa.org/doc/components.html#link-with-multiple-outputs-or-inputs
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Parameters
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----------
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directory : string
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Folder where component attributes to override are stored
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analogous to ``pypsa/component_attrs``, e.g. `links.csv`.
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Returns
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-------
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Dictionary of overriden component attributes.
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"""
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attrs = Dict({k : v.copy() for k,v in component_attrs.items()})
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for component, list_name in components.list_name.items():
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fn = f"{directory}/{list_name}.csv"
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if os.path.isfile(fn):
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overrides = pd.read_csv(fn, index_col=0, na_values="n/a")
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attrs[component] = overrides.combine_first(attrs[component])
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return attrs
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# from pypsa-eur/_helpers.py
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def mock_snakemake(rulename, **wildcards):
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"""
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This function is expected to be executed from the 'scripts'-directory of '
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the snakemake project. It returns a snakemake.script.Snakemake object,
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based on the Snakefile.
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If a rule has wildcards, you have to specify them in **wildcards.
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Parameters
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----------
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rulename: str
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name of the rule for which the snakemake object should be generated
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**wildcards:
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keyword arguments fixing the wildcards. Only necessary if wildcards are
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needed.
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"""
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import snakemake as sm
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import os
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from pypsa.descriptors import Dict
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from snakemake.script import Snakemake
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script_dir = Path(__file__).parent.resolve()
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assert Path.cwd().resolve() == script_dir, \
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f'mock_snakemake has to be run from the repository scripts directory {script_dir}'
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os.chdir(script_dir.parent)
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for p in sm.SNAKEFILE_CHOICES:
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if os.path.exists(p):
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snakefile = p
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break
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workflow = sm.Workflow(snakefile)
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workflow.include(snakefile)
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workflow.global_resources = {}
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rule = workflow.get_rule(rulename)
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dag = sm.dag.DAG(workflow, rules=[rule])
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wc = Dict(wildcards)
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job = sm.jobs.Job(rule, dag, wc)
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def make_accessable(*ios):
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for io in ios:
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for i in range(len(io)):
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io[i] = os.path.abspath(io[i])
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make_accessable(job.input, job.output, job.log)
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snakemake = Snakemake(job.input, job.output, job.params, job.wildcards,
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job.threads, job.resources, job.log,
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job.dag.workflow.config, job.rule.name, None,)
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# create log and output dir if not existent
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for path in list(snakemake.log) + list(snakemake.output):
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Path(path).parent.mkdir(parents=True, exist_ok=True)
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os.chdir(script_dir)
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return snakemake
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