importosimportpandasaspdimportseabornassnsfromfull_fred.fredimportFred# FRED_API_KEY = os.getenv('FRED_API_KEY')fred=Fred()print(f"FRED API key is set to an environment variable: {fred.env_api_key_found()}")defget_fred_data(name,start="2013-01-01",end=""):df=fred.get_series_df(name)[["date","value"]].copy()df["date"]=pd.to_datetime(df["date"])df["value"]=pd.to_numeric(df["value"],errors="coerce")df=df.set_index("date")ifend=="":df=df.loc[f"{start}":]else:df=df.loc[f"{start}":f"{end}"]returndf
FRED API key is set to an environment variable:True