René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Axes creation seems to reuse an old one instead of creating a new one","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\nIt appears that when plt.axes() is called, if the parameters are identical to a previous call, that old axes is reused instead of creating a new one. I don't know if this is by design or not but it makes the behavior very unexpected. \r\n\r\n\u003c!--A short 1-2 sentences that succinctly describes the bug--\u003e\r\n\r\n**Code for reproduction**\r\n\r\n\u003c!--A minimum code snippet required to reproduce the bug, also minimizing the number of dependencies required--\u003e\r\n\r\n```python\r\n\r\n%matplotlib notebook\r\n\r\nimport matplotlib.pyplot as plt\r\nfrom matplotlib.widgets import Button\r\nfrom mpl_toolkits.axes_grid1 import inset_locator\r\n\r\nfig = plt.figure()\r\nax = fig.add_subplot(111)\r\n\r\na1=plt.axes([0,0,1,1], facecolor='yellow')\r\npos1=inset_locator.InsetPosition(parent=ax,lbwh=[.5,.5,.04,.04])\r\na1.set_axes_locator(locator=pos1)\r\nb1=Button(a1,'1')\r\n\r\na2=plt.axes([0,0,1,1], facecolor='yellow') \r\n# the parameters above are identical to those of a1, resulting in this behaving \r\n# as if one says a2=a1\r\npos2=inset_locator.InsetPosition(parent=ax,lbwh=[.6,.5,.04,.04])\r\na2.set_axes_locator(locator=pos2)\r\nb2=Button(a2,'2')\r\n\r\na3=plt.axes([0,0,1,1], facecolor='orange')\r\n# the parameters above are different from previous axes() calls and therefore a new\r\n# axes is created \r\npos3=inset_locator.InsetPosition(parent=ax,lbwh=[.7,.5,.04,.04])\r\na3.set_axes_locator(locator=pos3)\r\nb3=Button(a3,'3')\r\n\r\n# The use of buttons is to illustrate a use case. But it is not necessary; the behavior is the \r\n# same if one comments out the three Button() calls\r\n\r\nplt.show()\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\nTwo buttons appear, one with \"1\" and \"2\" on top of each other and the other with \"3\" in it.\r\n\r\n\r\n**Expected outcome**\r\n\r\n\u003c!--A description of the expected outcome from the code snippet--\u003e\r\n\r\nThree buttons appear: \"1\", \"2\", and \"3\" horizontally.\r\n\r\n\u003c!--If this used to work in an earlier version of Matplotlib, please note the version it used to work on--\u003e\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: Window 7\r\n  * Matplotlib Version: 2.0.2\r\n  * Python Version: 3.6.1 (Anaconda 4.4.0)\r\n  * Jupyter Version: 5.0.0 (IPython 5.3.0)\r\n  * Other Libraries: No\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\n\r\n","author":{"url":"https://github.com/omasoud","@type":"Person","name":"omasoud"},"datePublished":"2017-08-12T00:08:31.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":13},"url":"https://github.com/9024/matplotlib/issues/9024"}