René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"pyplot.plot using pandas series raises DeprecationWarning with pandas=1.0.0rc0","articleBody":"\u003c!--To help us understand and resolve your issue, please fill out the form to the best of your ability.--\u003e\r\n\u003c!--You can feel free to delete the sections that do not apply.--\u003e\r\n\r\n### Bug report\r\n\r\n**Bug summary**\r\n\r\n\u003c!--A short 1-2 sentences that succinctly describes the bug--\u003e\r\nThe code below raises ``DeprecationWarning`` from ``pandas=1.0.0rc0`` when ``plt.plot`` is fed with two ``pandas.Series`` (using my matplotlib=3.1.0 instance). It reproduces also when the series is not empty, and also when plotting two different series as x and y. \r\n\r\n**Code for reproduction**\r\n\u003c!--A minimum code snippet required to reproduce the bug.\r\nPlease make sure to minimize the number of dependencies required, and provide\r\nany necessary plotted data.\r\nAvoid using threads, as Matplotlib is (explicitly) not thread-safe.--\u003e\r\n\r\n```python\r\nimport pandas as pd\r\nimport matplotlib.pyplot as plt\r\n\r\nx = pd.Series([], dtype=\"float64\")\r\nplt.plot(x, x)\r\n```\r\n\r\n**Actual outcome**\r\n\r\n\u003c!--The output produced by the above code, which may be a screenshot, console output, etc.--\u003e\r\n\r\n```\r\nTraceback (most recent call last):\r\n  File \"pandas1.py\", line 5, in \u003cmodule\u003e\r\n    plt.plot(x, x)\r\n  File \"/lib/python3.7/site-packages/matplotlib/pyplot.py\", line 2789, in plot\r\n    is not None else {}), **kwargs)\r\n  File \"/lib/python3.7/site-packages/matplotlib/axes/_axes.py\", line 1666, in plot\r\n    lines = [*self._get_lines(*args, data=data, **kwargs)]\r\n  File \"/lib/python3.7/site-packages/matplotlib/axes/_base.py\", line 225, in __call__\r\n    yield from self._plot_args(this, kwargs)\r\n  File \"/lib/python3.7/site-packages/matplotlib/axes/_base.py\", line 386, in _plot_args\r\n    x = _check_1d(tup[0])\r\n  File \"/lib/python3.7/site-packages/matplotlib/cbook/__init__.py\", line 1402, in _check_1d\r\n    x[:, None]\r\n  File \"/lib/python3.7/site-packages/pandas/core/series.py\", line 865, in __getitem__\r\n    return self._get_with(key)\r\n  File \"/lib/python3.7/site-packages/pandas/core/series.py\", line 878, in _get_with\r\n    return self._get_values_tuple(key)\r\n  File \"/lib/python3.7/site-packages/pandas/core/series.py\", line 920, in _get_values_tuple\r\n    return self._get_values(key)\r\n  File \"/lib/python3.7/site-packages/pandas/core/series.py\", line 934, in _get_values\r\n    self._data.get_slice(indexer), fastpath=True\r\n  File \"/lib/python3.7/site-packages/pandas/core/internals/managers.py\", line 1542, in get_slice\r\n    return type(self)(self._block._slice(slobj), self.index[slobj], fastpath=True)\r\n  File \"/lib/python3.7/site-packages/pandas/core/indexes/range.py\", line 708, in __getitem__\r\n    return super().__getitem__(key)\r\n  File \"/lib/python3.7/site-packages/pandas/core/indexes/base.py\", line 3908, in __getitem__\r\n    deprecate_ndim_indexing(result)\r\n  File \"/lib/python3.7/site-packages/pandas/core/indexes/base.py\", line 5553, in deprecate_ndim_indexing\r\n    stacklevel=3,\r\nDeprecationWarning: Support for multi-dimensional indexing (e.g. `index[:, None]`) on an Index is deprecated and will be removed in a future version.  Convert to a numpy array before indexing instead.\r\n```\r\n\r\n**Expected outcome**\r\n\r\nNo warnings.\r\n\r\n**Matplotlib version**\r\n\u003c!--Please specify your platform and versions of the relevant libraries you are using:--\u003e\r\n  * Operating system: linux\r\n  * Matplotlib version: 3.1.0\r\n  * Matplotlib backend (`print(matplotlib.get_backend())`): agg\r\n  * Python version: 3.7.3\r\n  * Other libraries: pandas=1.0.0rc0\r\n\r\n\u003c!--Please tell us how you installed matplotlib and python e.g., from source, pip, conda--\u003e\r\n\u003c!--If you installed from conda, please specify which channel you used if not the default--\u003e\r\npython and matplotlib obtained through anaconda, pandas through pip \r\n","author":{"url":"https://github.com/MaozGelbart","@type":"Person","name":"MaozGelbart"},"datePublished":"2020-01-22T21:38:20.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":6},"url":"https://github.com/16295/matplotlib/issues/16295"}