WebJul 22, 2024 · 1 Answer Sorted by: 3 You are using the parameter incorrectly. You can only specify a single type name, or a dict that matches column headers to types. This is clearly covered in the documentation: dtype : Type name or dict of column -> type, optional Data type for data or columns. WebJun 30, 2016 · The following code converts a 'str' to 'decimal.Decimal' so I don't understand why pandas doesn't behave the same way. x = D.Decimal ('1.0') print (type (x)) Results: `` python csv pandas type-conversion decimal Share Improve this question Follow asked Jun 30, 2016 at 5:32 candleford 251 1 2 7 Add a comment 1 Answer
Reading pandas dataframe that contains dictionaries in cells …
WebApr 21, 2024 · 1. I don't think there is a date dtype in pandas, you could convert it into a datetime however using the same syntax as - df = df.astype ( {'date': 'datetime64 [ns]'}) When you convert an object to date using pd.to_datetime (df ['date']).dt.date , the dtype is still object. – tidakdiinginkan. WebJan 25, 2024 · "TypeError: data type not understood" with dtype: string #2036 Closed error when PeriodIndex is present in the dataframe. Thank you! Member The relevant code that would need to be modified is here: … is a smart car front wheel drive
pandas data types changed when reading from parquet file?
WebJan 5, 2016 · When you define a field name from a unicode object like this, you receive an error (as explained in the other answer): >>> np.dtype([(u'foo', 'f')]) Traceback (most … WebMar 25, 2015 · Using the astype method of a pandas.Series object with any of the above options as the input argument will result in pandas trying to convert the Series to that … WebApr 23, 2024 · TypeError: data type 'list' not understood 980 times 0 I have a Series object, returned by pandas groupby, which has elements of numpy.ndarray type. I would like to convert ndarrays to lists, preferably without using loops. I tried to use pandas.Series.astype but I got error: TypeError: data type 'list' not understood. on aftershocks of earthquakes