new ip

plotter-app/venv/lib/python3.8/site-packages/matplotlib/tests/test_container.py

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+import matplotlib.pyplot as plt
+
+
+def test_stem_remove():
+    ax = plt.gca()
+    st = ax.stem([1, 2], [1, 2])
+    st.remove()
+
+
+def test_errorbar_remove():
+
+    # Regression test for a bug that caused remove to fail when using
+    # fmt='none'
+
+    ax = plt.gca()
+
+    eb = ax.errorbar([1], [1])
+    eb.remove()
+
+    eb = ax.errorbar([1], [1], xerr=1)
+    eb.remove()
+
+    eb = ax.errorbar([1], [1], yerr=2)
+    eb.remove()
+
+    eb = ax.errorbar([1], [1], xerr=[2], yerr=2)
+    eb.remove()
+
+    eb = ax.errorbar([1], [1], fmt='none')
+    eb.remove()