.. note:: :class: sphx-glr-download-link-note Click :ref:`here ` to download the full example code .. rst-class:: sphx-glr-example-title .. _sphx_glr_gallery_misc_load_converter.py: ============== Load converter ============== This example demonstrates passing a custom converter to `numpy.genfromtxt` to extract dates from a CSV file. .. image:: /gallery/misc/images/sphx_glr_load_converter_001.png :class: sphx-glr-single-img .. rst-class:: sphx-glr-script-out Out: .. code-block:: none loading /tmp/mpldocs/lib/python3.6/site-packages/matplotlib/mpl-data/sample_data/msft.csv | .. code-block:: default import dateutil.parser from matplotlib import cbook, dates import matplotlib.pyplot as plt import numpy as np datafile = cbook.get_sample_data('msft.csv', asfileobj=False) print('loading', datafile) data = np.genfromtxt( datafile, delimiter=',', names=True, dtype=None, converters={0: dateutil.parser.parse}) fig, ax = plt.subplots() ax.plot(data['Date'], data['High'], '-') fig.autofmt_xdate() plt.show() .. _sphx_glr_download_gallery_misc_load_converter.py: .. only :: html .. container:: sphx-glr-footer :class: sphx-glr-footer-example .. container:: sphx-glr-download :download:`Download Python source code: load_converter.py ` .. container:: sphx-glr-download :download:`Download Jupyter notebook: load_converter.ipynb ` .. only:: html .. rst-class:: sphx-glr-signature Keywords: matplotlib code example, codex, python plot, pyplot `Gallery generated by Sphinx-Gallery `_