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+--- Thread: "'DataFrame' objects are mutable, thus they cannot be hashed" (/thread-31641.html)
"'DataFrame' objects are mutable, thus they cannot be hashed" - Mark17 - Dec-24-2020
I've been having trouble in a few instances with what I think is the same core issue--I just can't identify exactly what it is.
markets = ['ES', 'GC', 'CL', 'EC', 'US']
margin_dict = {}
for market in markets:
df_name = market
market = pd.read_csv(r'C:\Users\Mark17\{}(daily).csv'.format(market), parse_dates=["Date"], index_col="Date")
margin_dict[df_name] = market.iloc[:,0].max() * 0.15 * trade_unit[df_name] * multiplier[df_name]This works. However, if I use "market" in place of "df_name" in the last line, then I get:TypeError: 'DataFrame' objects are mutable, thus they cannot be hashed
Can someone please explain that?
RE: "'DataFrame' objects are mutable, thus they cannot be hashed" - tinh - Dec-25-2020
You reassigned "market = pd.read_csv..."
so absolutely it is not equal to df_name anymore, so cannot replace df_name with market