Pandas Adding element to empty object Series changes dtype

Code Sample, a copy-pastable example if possibleIn [2]: s = pd.Series(dtype='object')In [3]: s.loc[0] = 1In [4]: sOut[4]...

Pandas write data to excel template and charts disappear

Code# Your code herebook = load_workbook(self.template_excel_path, data_only=True, keep_links=True)writer = pandas.Excel...

Pandas Is there a count distinct in pandas?

Problem descriptionI can't seem to find if pandas has a count unique / distinct function. I know I can unique a series /...

Pandas Inconsistent results between 'nlargest' and 'sort_values' function

df = pd.DataFrame({'a': [-2, -1, 1, 10, 8, 11, -1], 'b': list('abdceff'), 'c': [1.0, 2.0, 4.0, 3.2, np.nan, ...

Pandas Display sparse multi-index of dataframe in Pandas

In [1]: import pandas as pdfrom io import StringIO data = """code\tname\ttyp\tntf\nA5411\tWD\tAF\t\nA5411...

Pandas Doc: Incorrect exmaples for 'GroupBy.apply' functon

Example 1 and Example 2 are both incorrect for 'GroupBy.apply' functon in document.>>> df = pd.DataFrame({...

Pandas Slice with .loc includes stop index. Not consistent with Python standards?

Code Sample, a copy-pastable example if possibleimport numpy as npimport pandas as pdtest = [0,1,2,3,4]test_np = np.arra...

Pandas Denoting duplicated by specific combination of index

Code Samplepandas.DataFrame.duplicated(subset=None, keep='first')Problem descriptionPandas have a built-in method for de...

Pandas Dataframe w/ DatetimeIndex memory leak

Code Sample, a copy-pastable example if possibleimport gcimport numpy as npimport pandas as pdfrom memory_profiler impor...

Pandas Segmentation fault: 11 with encoded HTML characters

Code Sample, a copy-pastable example if possible#!/usr/bin/pythonimport MySQLdbimport pandas as pdimport pprint as ppimp...

Pandas timedelta cannot convert to monthly data.

Timedelta cannot convert x minute timesereies to monthly series. Each time I try to use it will upsample x minute data...

Pandas read_fwf - parsers.py PythonParser._rows_to_columns line 2814 object of type 'NoneType' has no len()

Line 2814 in parsers.py throws an error if self.delimiter is None:"object of type 'NoneType' has no len()"Here is the cu...

Pandas Unable to save parquet file using s3 url

Code Sample, a copy-pastable example if possibleimport pandas as pddata = [1, 2, 3]df = pd.DataFrame()s3_url = 's3://my_...

Pandas groupby value_counts strips categorical information

Code Sample, a copy-pastable example if possibleimport seaborn as snstips = sns.load_dataset("tips")print(tips...

Pandas Inconsistent date parsing with read_csv

Code Sample, a copy-pastable example if possible> cat events.csvid;name;date1;event1;11/03/20112;event2;03/05/20113;e...

Pandas FR: Allow duplicate column names in pandas.read_csv

Right now, pandas's read_csv() supports forcing column names read from CSV data to be unique:>>> import pandas ...

Pandas DataFrame.to_dict not using python types

I have a dataframe that I need to convert to a dict and add it to another dict which is converted to json in the end. Un...

Pandas Subclass of DataFrame losing properties on arithmetic functions like __add__

class PDMixIn(object): @property def _constructor(self): return self.__class__class DF(PDMixIn, pd.DataFram...

Pandas Styling code not executed

Code Sample, a copy-pastable example if possible# Your code here# the code is from the example of styling with a little ...

Pandas ipynb in document page is not actually ipynb format

Document page for example: https://pandas.pydata.org/pandas-docs/stable/style.htmlon topNew in version 0.17.1Provisional...
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