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1
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""" |
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2
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Read eTraGo tables for the status2019 and import it to db |
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3
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""" |
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4
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5
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from pathlib import Path |
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6
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from urllib.request import urlretrieve |
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7
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import os |
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8
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import subprocess |
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9
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10
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import pandas as pd |
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11
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12
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from egon.data import config, db |
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13
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import egon.data.config |
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14
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15
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sources = egon.data.config.datasets()["scenario_path"]["sources"] |
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16
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17
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18
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def download_status2019(): |
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19
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""" |
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20
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Download the status2019 etrago tables from Zenodo |
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21
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22
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Returns |
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23
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------- |
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24
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None. |
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25
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26
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""" |
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27
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28
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if "status2019" in config.settings()["egon-data"]["--scenarios"]: |
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print("Scenario status2019 was created within the pipeline. " |
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30
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"It is not imported from zenodo.") |
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31
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return |
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32
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33
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# Get parameters from config and set download URL |
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34
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url = sources["url_status2019"] |
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35
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status2019_path = Path(".") / "PoWerD_status2019.backup" |
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36
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37
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# Retrieve files |
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38
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urlretrieve(url, status2019_path) |
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39
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40
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return |
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41
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42
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43
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def import_scn_status2019(): |
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44
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""" |
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45
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Read and import the scenario status2019 and import it into db |
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46
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47
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Parameters |
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48
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---------- |
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49
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*No parameters required |
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50
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51
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""" |
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52
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53
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if "status2019" in config.settings()["egon-data"]["--scenarios"]: |
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54
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print("Scenario status2019 was created within the pipeline. " |
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55
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"It is not imported from zenodo.") |
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56
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return |
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57
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58
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# Connect to the data base |
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59
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con = db.engine() |
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60
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61
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# Clean existing data for status2019 |
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62
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tables = pd.read_sql( |
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63
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""" |
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64
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SELECT tablename FROM pg_catalog.pg_tables |
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65
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WHERE schemaname = 'grid' |
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66
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""", |
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67
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con, |
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68
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) |
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69
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70
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tables = tables[ |
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71
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~tables["tablename"].isin( |
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72
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[ |
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73
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"egon_etrago_carrier", |
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74
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"egon_etrago_temp_resolution", |
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75
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] |
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76
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) |
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77
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] |
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78
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79
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for table in tables["tablename"]: |
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80
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db.execute_sql( |
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81
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f""" |
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82
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DELETE FROM grid.{table} WHERE scn_name = 'status2019'; |
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83
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""" |
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84
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) |
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85
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86
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config_data = config.settings()["egon-data"] |
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87
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database = config_data["--database-name"] |
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88
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host = config_data["--database-host"] |
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89
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port = config_data["--database-port"] |
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90
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user = config_data["--database-user"] |
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91
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92
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my_env = os.environ.copy() |
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93
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my_env["PGPASSWORD"] = config_data["--database-password"] |
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94
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95
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for table in tables["tablename"]: |
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96
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subprocess.Popen( |
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97
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[ |
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98
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"pg_restore", |
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99
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"-d", |
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100
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database, |
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101
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"--host", |
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102
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host, |
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103
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"--port", |
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104
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port, |
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105
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"-U", |
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106
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user, |
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107
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"-a", |
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108
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"--single-transaction", |
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109
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f"--table={table}", |
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110
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"PoWerD_status2019.backup", |
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111
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], |
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112
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env=my_env, |
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113
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) |
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114
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return |
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115
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openego /
eGon-data
