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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"[MNT]: Use mpl.rcParams internally","articleBody":"### Summary\r\n\r\nOriginally mentioned in https://github.com/matplotlib/matplotlib/issues/16181#issue-548352957\r\n\r\nDon't import `rcParams` into matplotlib modules directly:\r\n\r\n```\r\n# NO:\r\nfrom matplotlib import rcParams\r\n...\r\nrcParams[...]\r\n```\r\nThis has the disadvantage that `rcParams` get into the module namespace and people easily start using that (e.g. `from matplotlib import cm; cm.rcParams`).\r\n\r\nInstead use\r\n```\r\n# YES:\r\nimport matplotlib as mpl\r\n...\r\nmpl.rcParams[...]\r\n```\r\nWhile in theory people could still access it via `mpl` (e.g. `cm.mpl.rcParams`), this is far more unlikely and good enough for us. - We also don't shield other module imports.\r\n\r\nNote: It's also ok to use `plt.rcParams` if you happen to have pyplot anyway and would have to import mpl. This is in particular true for examples. But most matplotlib modules should not depend on `pyplot`.\r\n\r\nThere are many places in the library that need fixing, so it's ok to do this step-by-step.\r\n\r\nRelated PRs:\r\n\r\n- #16406\r\n- #16525\r\n- #16780\r\n- #23676\r\n- #23678\r\n\r\n\r\n\r\n\r\n","author":{"url":"https://github.com/timhoffm","@type":"Person","name":"timhoffm"},"datePublished":"2022-08-19T15:13:26.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":4},"url":"https://github.com/23680/matplotlib/issues/23680"}