Conditions | 4 |
Total Lines | 151 |
Code Lines | 114 |
Lines | 0 |
Ratio | 0 % |
Changes | 0 |
Small methods make your code easier to understand, in particular if combined with a good name. Besides, if your method is small, finding a good name is usually much easier.
For example, if you find yourself adding comments to a method's body, this is usually a good sign to extract the commented part to a new method, and use the comment as a starting point when coming up with a good name for this new method.
Commonly applied refactorings include:
If many parameters/temporary variables are present:
1 | """Import MaStR dataset and write to DB tables |
||
155 | def import_mastr(): |
||
156 | engine = db.engine() |
||
157 | cfg = egon.data.config.datasets()["power_plants"] |
||
158 | |||
159 | cols_mapping = { |
||
160 | "all": { |
||
161 | "EinheitMastrNummer": "gens_id", |
||
162 | "EinheitBetriebsstatus": "status", |
||
163 | "Inbetriebnahmedatum": "commissioning_date", |
||
164 | "Postleitzahl": "postcode", |
||
165 | "Ort": "city", |
||
166 | "Bundesland": "federal_state", |
||
167 | "Nettonennleistung": "capacity", |
||
168 | "Einspeisungsart": "feedin_type", |
||
169 | }, |
||
170 | "pv": { |
||
171 | "Lage": "site_type", |
||
172 | "Nutzungsbereich": "usage_sector", |
||
173 | "Hauptausrichtung": "orientation_primary", |
||
174 | "HauptausrichtungNeigungswinkel": "orientation_primary_angle", |
||
175 | "Nebenausrichtung": "orientation_secondary", |
||
176 | "NebenausrichtungNeigungswinkel": "orientation_secondary_angle", |
||
177 | "EinheitlicheAusrichtungUndNeigungswinkel": "orientation_uniform", |
||
178 | "AnzahlModule": "module_count", |
||
179 | "zugeordneteWirkleistungWechselrichter": "capacity_inverter", |
||
180 | }, |
||
181 | "wind": { |
||
182 | "Lage": "site_type", |
||
183 | "Hersteller": "manufacturer_name", |
||
184 | "Typenbezeichnung": "type_name", |
||
185 | "Nabenhoehe": "hub_height", |
||
186 | "Rotordurchmesser": "rotor_diameter", |
||
187 | }, |
||
188 | "biomass": { |
||
189 | "Technologie": "technology", |
||
190 | "Hauptbrennstoff": "fuel_name", |
||
191 | "Biomasseart": "fuel_type", |
||
192 | "ThermischeNutzleistung": "th_capacity", |
||
193 | }, |
||
194 | "hydro": { |
||
195 | "ArtDerWasserkraftanlage": "plant_type", |
||
196 | "ArtDesZuflusses": "water_origin", |
||
197 | }, |
||
198 | } |
||
199 | |||
200 | source_files = { |
||
201 | "pv": cfg["sources"]["mastr_pv"], |
||
202 | "wind": cfg["sources"]["mastr_wind"], |
||
203 | "biomass": cfg["sources"]["mastr_biomass"], |
||
204 | "hydro": cfg["sources"]["mastr_hydro"], |
||
205 | } |
||
206 | target_tables = { |
||
207 | "pv": EgonPowerPlantsPv, |
||
208 | "wind": EgonPowerPlantsWind, |
||
209 | "biomass": EgonPowerPlantsBiomass, |
||
210 | "hydro": EgonPowerPlantsHydro, |
||
211 | } |
||
212 | |||
213 | # import locations |
||
214 | locations = pd.read_csv(cfg["sources"]["mastr_location"], index_col=None) |
||
215 | |||
216 | # import units |
||
217 | technologies = ["pv", "wind", "biomass", "hydro"] |
||
218 | for tech in technologies: |
||
219 | # read units |
||
220 | print(f"Importing MaStR dataset: {tech}:") |
||
221 | print(" Reading CSV and filtering data...") |
||
222 | units = pd.read_csv( |
||
223 | source_files[tech], |
||
224 | usecols=( |
||
225 | ["LokationMastrNummer", "Laengengrad", "Breitengrad", "Land"] |
||
226 | + list(cols_mapping["all"].keys()) |
||
227 | + list(cols_mapping[tech].keys()) |
||
228 | ), |
||
229 | index_col=None, |
||
230 | dtype={"Postleitzahl": str}, |
||
231 | ).rename(columns=cols_mapping) |
||
232 | |||
233 | # drop units outside of Germany |
||
234 | len_old = len(units) |
||
235 | units = units.loc[units.Land == "Deutschland"] |
||
236 | print(f" {len_old-len(units)} units outside of Germany dropped...") |
||
237 | |||
238 | # filter for SH units if in testmode |
||
239 | if not TESTMODE_OFF: |
||
240 | print( |
||
241 | """ TESTMODE: |
||
242 | Dropping all units outside of Schleswig-Holstein... |
||
243 | """ |
||
244 | ) |
||
245 | units = units.loc[units.Bundesland == "SchleswigHolstein"] |
||
246 | |||
247 | # merge and rename voltage level |
||
248 | print(" Merging with locations and allocate voltage level...") |
||
249 | units = units.merge( |
||
250 | locations[["MaStRNummer", "Spannungsebene"]], |
||
251 | left_on="LokationMastrNummer", |
||
252 | right_on="MaStRNummer", |
||
253 | how="left", |
||
254 | ) |
||
255 | vlevel_mapping = { |
||
256 | "Höchstspannung": 1, |
||
257 | "UmspannungZurHochspannung": 2, |
||
258 | "Hochspannung": 3, |
||
259 | "UmspannungZurMittelspannung": 4, |
||
260 | "Mittelspannung": 5, |
||
261 | "UmspannungZurNiederspannung": 6, |
||
262 | "Niederspannung": 7, |
||
263 | } |
||
264 | units["voltage_level"] = units.Spannungsebene.replace(vlevel_mapping) |
||
265 | |||
266 | # add geometry |
||
267 | print(" Adding geometries...") |
||
268 | units = gpd.GeoDataFrame( |
||
269 | units, |
||
270 | geometry=gpd.points_from_xy( |
||
271 | units["Laengengrad"], units["Breitengrad"], crs=4326 |
||
272 | ), |
||
273 | crs=4326, |
||
274 | ) |
||
275 | |||
276 | # drop unnecessary and rename columns |
||
277 | print(" Reformatting...") |
||
278 | units.drop( |
||
279 | columns=[ |
||
280 | "LokationMastrNummer", |
||
281 | "MaStRNummer", |
||
282 | "Laengengrad", |
||
283 | "Breitengrad", |
||
284 | "Spannungsebene", |
||
285 | "Land", |
||
286 | ], |
||
287 | inplace=True, |
||
288 | ) |
||
289 | mapping = cols_mapping["all"].copy() |
||
290 | mapping.update(cols_mapping[tech]) |
||
291 | mapping.update({"geometry": "geom"}) |
||
292 | units.rename(columns=mapping, inplace=True) |
||
293 | units["voltage_level"] = units.voltage_level.fillna(-1).astype(int) |
||
294 | if tech == "hydro": |
||
295 | units["plant_type"] = units.plant_type.fillna(-1).astype(int) |
||
296 | units.set_geometry("geom", inplace=True) |
||
297 | units["id"] = range(0, len(units)) |
||
298 | |||
299 | # write to DB |
||
300 | print(" Writing to DB...") |
||
301 | units.to_postgis( |
||
302 | name=target_tables[tech].__tablename__, |
||
303 | con=engine, |
||
304 | if_exists="append", |
||
305 | schema=target_tables[tech].__table_args__["schema"], |
||
306 | ) |
||
307 |