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fix: define inflow_t before branch so it is always assigned #2224

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Merged
fneum merged 3 commits into from
Jul 27, 2026
+3 −1
Merged

fix: define inflow_t before branch so it is always assigned #2224

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4a18dee
fix: define inflow_t before branch so it is always assigned
daniel-rdt Jul 7, 2026
d8db583
doc: add release note
daniel-rdt Jul 7, 2026
1014c58
Merge branch 'master' into fix/inflow-pylint
fneum Jul 13, 2026
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2 changes: 2 additions & 0 deletions doc/release_notes.md
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Expand Up @@ -49,6 +49,8 @@

- doc: Disable root TOC entries in order to declutter the table of contents for the rules overview ([2216](https://github.com/PyPSA/pypsa-eur/pull/2216)).

* fix: Ensure `inflow_t` is always defined in `attach_hydro`, resolving a pylint use-before-assignment issue ([#2224](https://github.com/PyPSA/pypsa-eur/pull/2224)).

## PyPSA-Eur v2026.02.0 (18th February 2026)

**Features**
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3 changes: 2 additions & 1 deletion scripts/add_electricity.py
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Expand Up @@ -770,6 +770,7 @@ def attach_hydro(
country = ppl["bus"].map(n.buses.country).rename("country")

inflow_idx = ror.index.union(hydro.index)
inflow_t = pd.DataFrame()
if not inflow_idx.empty:
dist_key = ppl.loc[inflow_idx, "p_nom"].groupby(country).transform(normed)

Expand Down Expand Up @@ -803,7 +804,7 @@ def attach_hydro(
capital_cost=costs.at["ror", "capital_cost"],
weight=ror["p_nom"],
p_max_pu=(
inflow_t[ror.index] # pylint: disable=E0606
inflow_t[ror.index]
.divide(ror["p_nom"], axis=1)
.where(lambda df: df <= 1.0, other=1.0)
),
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