def test_drop_obs_column():
    adata = ad.AnnData(np.array(X_list), obs=obs_dict, dtype="int32")

    subset = adata[:2]
    assert subset.is_view
    # returns a copy of obs
    assert subset.obs.drop(columns=["oanno1"]).columns.tolist() == ["oanno2", "oanno3"]
    assert subset.is_view
    # would modify obs, so it should actualize subset and not modify adata
    subset.obs.drop(columns=["oanno1"], inplace=True)
    assert not subset.is_view
    assert subset.obs.columns.tolist() == ["oanno2", "oanno3"]

    assert adata.obs.columns.tolist() == ["oanno1", "oanno2", "oanno3"]
def downloadIndexPage(self, uselessArg1=None):
        logging.info("download index page")
        strIndexHtmlFolderPath = self.SOURCE_HTML_BASE_FOLDER_PATH + u"\\TECHORANGE"
        if not os.path.exists(strIndexHtmlFolderPath):
            os.mkdir(strIndexHtmlFolderPath) #mkdir source_html/TECHORANGE/
        #科技報橘首頁
        self.driver.get("https://buzzorange.com/techorange/")
        #儲存 html
        strIndexHtmlFilePath = strIndexHtmlFolderPath + u"\\index.html"
        self.utility.overwriteSaveAs(strFilePath=strIndexHtmlFilePath, unicodeData=self.driver.page_source)