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python - "Expected an indented block"错误?

我不明白为什么python会给出“预期的缩进block”错误?"""Thismoduleprintsalltheitemswithinalist"""defprint_lol(the_list):"""Thefollowingforloopiteratesovereveryiteminthelistandcheckswhetherthelistitemisanotherlistornot.incasethelistitemisanotherlistitrecallsthefunctionelseitprintstheistitem"""foreach_iteminthe_list:if

python - "Expected an indented block"错误?

我不明白为什么python会给出“预期的缩进block”错误?"""Thismoduleprintsalltheitemswithinalist"""defprint_lol(the_list):"""Thefollowingforloopiteratesovereveryiteminthelistandcheckswhetherthelistitemisanotherlistornot.incasethelistitemisanotherlistitrecallsthefunctionelseitprintstheistitem"""foreach_iteminthe_list:if

python - 检查模型输入 : expected lstm_1_input to have 3 dimensions, 时出错,但得到的数组具有形状 (339732, 29)

我的输入只是一个包含339732行和两列的csv文件:第一个是29个特征值,即X第二个是二进制标签值,即Y我正在尝试在堆叠LSTM模型上训练我的数据:data_dim=29timesteps=8num_classes=2model=Sequential()model.add(LSTM(30,return_sequences=True,input_shape=(timesteps,data_dim)))#returnsasequenceofvectorsofdimension30model.add(LSTM(30,return_sequences=True))#returnsaseque

python - 检查模型输入 : expected lstm_1_input to have 3 dimensions, 时出错,但得到的数组具有形状 (339732, 29)

我的输入只是一个包含339732行和两列的csv文件:第一个是29个特征值,即X第二个是二进制标签值,即Y我正在尝试在堆叠LSTM模型上训练我的数据:data_dim=29timesteps=8num_classes=2model=Sequential()model.add(LSTM(30,return_sequences=True,input_shape=(timesteps,data_dim)))#returnsasequenceofvectorsofdimension30model.add(LSTM(30,return_sequences=True))#returnsaseque

python Selenium : does not wait until page is loaded after a click() command

有人知道如何等待页面加载吗?我尝试了我在网上找到的所有可能的变体,但根本不起作用。我需要在触发click()命令后等待,Web服务器上有一些内部脚本会欺骗检查,例如(我排除了导入所需模块的代码并使用标准命名约定):WebDriverWait(browser,10).until(lambdad:d.find_element_by_id(the_id))或browser.implicitly_wait(10)或elem2=wait.until(EC.presence_of_element_located((By.ID,the_id)))上述所有检查都不起作用,即使页面仍在加载,它们也会返回

python Selenium : does not wait until page is loaded after a click() command

有人知道如何等待页面加载吗?我尝试了我在网上找到的所有可能的变体,但根本不起作用。我需要在触发click()命令后等待,Web服务器上有一些内部脚本会欺骗检查,例如(我排除了导入所需模块的代码并使用标准命名约定):WebDriverWait(browser,10).until(lambdad:d.find_element_by_id(the_id))或browser.implicitly_wait(10)或elem2=wait.until(EC.presence_of_element_located((By.ID,the_id)))上述所有检查都不起作用,即使页面仍在加载,它们也会返回

python - 想要找到轮廓-> ValueError : not enough values to unpack (expected 3, got 2),出现这个

这个问题在这里已经有了答案:OpenCVPython:cv2.findContours-ValueError:toomanyvaluestounpack(9个回答)关闭3个月前。我的简单Python代码是这样的importcv2img=cv2.imread('Materials/shapes.png')blur=cv2.GaussianBlur(img,(3,3),0)gray=cv2.cvtColor(blur,cv2.COLOR_BGR2GRAY)returns,thresh=cv2.threshold(gray,80,255,cv2.THRESH_BINARY)ret,conto

python - 想要找到轮廓-> ValueError : not enough values to unpack (expected 3, got 2),出现这个

这个问题在这里已经有了答案:OpenCVPython:cv2.findContours-ValueError:toomanyvaluestounpack(9个回答)关闭3个月前。我的简单Python代码是这样的importcv2img=cv2.imread('Materials/shapes.png')blur=cv2.GaussianBlur(img,(3,3),0)gray=cv2.cvtColor(blur,cv2.COLOR_BGR2GRAY)returns,thresh=cv2.threshold(gray,80,255,cv2.THRESH_BINARY)ret,conto

docker-compose: command not found

报错:原因:没有安装 docker-composeCentos解决如下:1.下载安装文件sudocurl-L"https://github.com/docker/compose/releases/download/1.29.0/docker-compose-$(uname-s)-$(uname-m)"-o/usr/local/bin/docker-compose2.赋予执行权限sudochmod+x/usr/local/bin/docker-compose3.创建软连接sudoln-s/usr/local/bin/docker-compose/usr/bin/docker-compose4.测

python - Pandas 合并给出错误 "Buffer has wrong number of dimensions (expected 1, got 2)"

我正在尝试进行pandas合并,并在尝试运行时从标题中得到上述错误。我使用3列进行匹配,而在我只对2列进行类似合并之前,它工作正常。df=pd.merge(df,c,how="left",left_on=["section_term_ps_id","section_school_id","state"],right_on=["term_ps_id","term_school_id","state"])两个数据框的列df:Index([u'section_ps_id',u'section_school_id',u'section_course_number',u'section_term