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Improper conversion of Pandas-Arrow date to datetime fails #4171

Description

@s-banach

The Issue

Consider this branch of code:

It attempts to call v.dt.to_pydatetime() on a Series with any kind of date or time dtype.

This isn't correct, because a date dtype is different than a datetime dtype, see the comment from pandas maintainer @mroeschke on this issue: pandas-dev/pandas#52812. In other words, this is unsupported by pandas, and will continue to raise an error in the future.

You should probably just use v.to_numpy() instead.

Reproducing Code

The following code results in the error AttributeError: 'pyarrow.lib.DataType' object has no attribute 'unit', as a result of the above bug.

importdatetimeimportplotly.expressaspximportpolarsaspldf=pl.DataFrame(
{
"x": [datetime.date(2020, n, 1) forninrange(1, 13)],
"y": [3*n%13forninrange(1, 13)],
}
).to_pandas(use_pyarrow_extension_array=True)
fig=px.bar(data_frame=df, x="x", y="y")
fig.show()

Note that the following code works, by properly calling .to_numpy() and letting pandas figure out how to handle it:

fig=px.bar(x=df["x"].to_numpy(), y=df["y"].to_numpy())

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      Improper conversion of Pandas-Arrow date to datetime fails · Issue #4171 · plotly/plotly.py · GitHub
      Skip to content

      Improper conversion of Pandas-Arrow date to datetime fails #4171

      Description

      @s-banach

      The Issue

      Consider this branch of code:

      It attempts to call v.dt.to_pydatetime() on a Series with any kind of date or time dtype.

      This isn't correct, because a date dtype is different than a datetime dtype, see the comment from pandas maintainer @mroeschke on this issue: pandas-dev/pandas#52812. In other words, this is unsupported by pandas, and will continue to raise an error in the future.

      You should probably just use v.to_numpy() instead.

      Reproducing Code

      The following code results in the error AttributeError: 'pyarrow.lib.DataType' object has no attribute 'unit', as a result of the above bug.

      importdatetimeimportplotly.expressaspximportpolarsaspldf=pl.DataFrame(
      {
      "x": [datetime.date(2020, n, 1) forninrange(1, 13)],
      "y": [3*n%13forninrange(1, 13)],
      }
      ).to_pandas(use_pyarrow_extension_array=True)
      fig=px.bar(data_frame=df, x="x", y="y")
      fig.show()

      Note that the following code works, by properly calling .to_numpy() and letting pandas figure out how to handle it:

      fig=px.bar(x=df["x"].to_numpy(), y=df["y"].to_numpy())

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          Skip to content

          Improper conversion of Pandas-Arrow date to datetime fails #4171

          Description

          @s-banach

          The Issue

          Consider this branch of code:

          It attempts to call v.dt.to_pydatetime() on a Series with any kind of date or time dtype.

          This isn't correct, because a date dtype is different than a datetime dtype, see the comment from pandas maintainer @mroeschke on this issue: pandas-dev/pandas#52812. In other words, this is unsupported by pandas, and will continue to raise an error in the future.

          You should probably just use v.to_numpy() instead.

          Reproducing Code

          The following code results in the error AttributeError: 'pyarrow.lib.DataType' object has no attribute 'unit', as a result of the above bug.

          importdatetimeimportplotly.expressaspximportpolarsaspldf=pl.DataFrame(
          {
          "x": [datetime.date(2020, n, 1) forninrange(1, 13)],
          "y": [3*n%13forninrange(1, 13)],
          }
          ).to_pandas(use_pyarrow_extension_array=True)
          fig=px.bar(data_frame=df, x="x", y="y")
          fig.show()

          Note that the following code works, by properly calling .to_numpy() and letting pandas figure out how to handle it:

          fig=px.bar(x=df["x"].to_numpy(), y=df["y"].to_numpy())

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              Skip to content

              Improper conversion of Pandas-Arrow date to datetime fails #4171

              Description

              @s-banach

              The Issue

              Consider this branch of code:

              It attempts to call v.dt.to_pydatetime() on a Series with any kind of date or time dtype.

              This isn't correct, because a date dtype is different than a datetime dtype, see the comment from pandas maintainer @mroeschke on this issue: pandas-dev/pandas#52812. In other words, this is unsupported by pandas, and will continue to raise an error in the future.

              You should probably just use v.to_numpy() instead.

              Reproducing Code

              The following code results in the error AttributeError: 'pyarrow.lib.DataType' object has no attribute 'unit', as a result of the above bug.

              importdatetimeimportplotly.expressaspximportpolarsaspldf=pl.DataFrame(
              {
              "x": [datetime.date(2020, n, 1) forninrange(1, 13)],
              "y": [3*n%13forninrange(1, 13)],
              }
              ).to_pandas(use_pyarrow_extension_array=True)
              fig=px.bar(data_frame=df, x="x", y="y")
              fig.show()

              Note that the following code works, by properly calling .to_numpy() and letting pandas figure out how to handle it:

              fig=px.bar(x=df["x"].to_numpy(), y=df["y"].to_numpy())

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                  Skip to content

                  Improper conversion of Pandas-Arrow date to datetime fails #4171

                  Description

                  @s-banach

                  The Issue

                  Consider this branch of code:

                  It attempts to call v.dt.to_pydatetime() on a Series with any kind of date or time dtype.

                  This isn't correct, because a date dtype is different than a datetime dtype, see the comment from pandas maintainer @mroeschke on this issue: pandas-dev/pandas#52812. In other words, this is unsupported by pandas, and will continue to raise an error in the future.

                  You should probably just use v.to_numpy() instead.

                  Reproducing Code

                  The following code results in the error AttributeError: 'pyarrow.lib.DataType' object has no attribute 'unit', as a result of the above bug.

                  importdatetimeimportplotly.expressaspximportpolarsaspldf=pl.DataFrame(
                  {
                  "x": [datetime.date(2020, n, 1) forninrange(1, 13)],
                  "y": [3*n%13forninrange(1, 13)],
                  }
                  ).to_pandas(use_pyarrow_extension_array=True)
                  fig=px.bar(data_frame=df, x="x", y="y")
                  fig.show()

                  Note that the following code works, by properly calling .to_numpy() and letting pandas figure out how to handle it:

                  fig=px.bar(x=df["x"].to_numpy(), y=df["y"].to_numpy())

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                      Skip to content

                      Improper conversion of Pandas-Arrow date to datetime fails #4171

                      Description

                      @s-banach

                      The Issue

                      Consider this branch of code:

                      It attempts to call v.dt.to_pydatetime() on a Series with any kind of date or time dtype.

                      This isn't correct, because a date dtype is different than a datetime dtype, see the comment from pandas maintainer @mroeschke on this issue: pandas-dev/pandas#52812. In other words, this is unsupported by pandas, and will continue to raise an error in the future.

                      You should probably just use v.to_numpy() instead.

                      Reproducing Code

                      The following code results in the error AttributeError: 'pyarrow.lib.DataType' object has no attribute 'unit', as a result of the above bug.

                      importdatetimeimportplotly.expressaspximportpolarsaspldf=pl.DataFrame(
                      {
                      "x": [datetime.date(2020, n, 1) forninrange(1, 13)],
                      "y": [3*n%13forninrange(1, 13)],
                      }
                      ).to_pandas(use_pyarrow_extension_array=True)
                      fig=px.bar(data_frame=df, x="x", y="y")
                      fig.show()

                      Note that the following code works, by properly calling .to_numpy() and letting pandas figure out how to handle it:

                      fig=px.bar(x=df["x"].to_numpy(), y=df["y"].to_numpy())

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                          Skip to content

                          Improper conversion of Pandas-Arrow date to datetime fails #4171

                          Description

                          @s-banach

                          The Issue

                          Consider this branch of code:

                          It attempts to call v.dt.to_pydatetime() on a Series with any kind of date or time dtype.

                          This isn't correct, because a date dtype is different than a datetime dtype, see the comment from pandas maintainer @mroeschke on this issue: pandas-dev/pandas#52812. In other words, this is unsupported by pandas, and will continue to raise an error in the future.

                          You should probably just use v.to_numpy() instead.

                          Reproducing Code

                          The following code results in the error AttributeError: 'pyarrow.lib.DataType' object has no attribute 'unit', as a result of the above bug.

                          importdatetimeimportplotly.expressaspximportpolarsaspldf=pl.DataFrame(
                          {
                          "x": [datetime.date(2020, n, 1) forninrange(1, 13)],
                          "y": [3*n%13forninrange(1, 13)],
                          }
                          ).to_pandas(use_pyarrow_extension_array=True)
                          fig=px.bar(data_frame=df, x="x", y="y")
                          fig.show()

                          Note that the following code works, by properly calling .to_numpy() and letting pandas figure out how to handle it:

                          fig=px.bar(x=df["x"].to_numpy(), y=df["y"].to_numpy())

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                              Skip to content

                              Improper conversion of Pandas-Arrow date to datetime fails #4171

                              Description

                              @s-banach

                              The Issue

                              Consider this branch of code:

                              It attempts to call v.dt.to_pydatetime() on a Series with any kind of date or time dtype.

                              This isn't correct, because a date dtype is different than a datetime dtype, see the comment from pandas maintainer @mroeschke on this issue: pandas-dev/pandas#52812. In other words, this is unsupported by pandas, and will continue to raise an error in the future.

                              You should probably just use v.to_numpy() instead.

                              Reproducing Code

                              The following code results in the error AttributeError: 'pyarrow.lib.DataType' object has no attribute 'unit', as a result of the above bug.

                              importdatetimeimportplotly.expressaspximportpolarsaspldf=pl.DataFrame(
                              {
                              "x": [datetime.date(2020, n, 1) forninrange(1, 13)],
                              "y": [3*n%13forninrange(1, 13)],
                              }
                              ).to_pandas(use_pyarrow_extension_array=True)
                              fig=px.bar(data_frame=df, x="x", y="y")
                              fig.show()

                              Note that the following code works, by properly calling .to_numpy() and letting pandas figure out how to handle it:

                              fig=px.bar(x=df["x"].to_numpy(), y=df["y"].to_numpy())

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                                P3backlogbugsomething broken

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                                  Issue actions