“ValueError：没有要连接的对象”是什么意思以及如何修复它？

Question

我尝试从农业表中的谷歌趋势获取数据。第一次还算顺利，第二次就不太顺利了。我收到一个错误，名为：

ValueError：没有要连接的对象

我之前在 Stack Overflow 上搜索过这个错误，但没有找到任何解决方案。我使用下面显示的代码：

!pip install Pytrends
!pip install pandas
!pip install pytrends --upgrade <---------Note: this solved a different error.
from pytrends.request import TrendReq
import pandas as pd
import time
startTime = time.time()
pytrend = TrendReq(hl='nl-NL', tz=360)
df = wb = gc.open_by_url('https://docs.google.com/spreadsheets/d/1QE1QilM-GDdQle6eVunepqG5RNWv39xO0By84C19Ehc/edit?usp=sharing')
sheet = wb.sheet1
df2 = sheet.col_values(5)
d_from = sheet.acell('B7').value
d_to = sheet.acell('B8').value
geo1 = sheet.acell('B10').value
dataset = []
for x in range(1,len(df2)):
     keywords = [df2[x]]
     pytrend.build_payload(
     kw_list=keywords,
     cat=0,
     timeframe= str(d_from + " " + d_to),
     geo= str(geo1))
     data = pytrend.interest_over_time()
     if not data.empty:
          data = data.drop(labels=['isPartial'],axis='columns')
          dataset.append(data)
result = pd.concat(dataset, axis=1)
result.to_csv('search_trends_DOWNLOAD_ME.csv')
!cp search_trends_DOWNLOAD_ME.csv "/content/drive/My Drive/Colab Notebooks/Output"
executionTime = (time.time() - startTime)
print('Execution time in sec.: ' + str(executionTime))

我得到的错误：

!pip install Pytrends
!pip install pandas
!pip install pytrends --upgrade <---------Note: this solved a different error.
from pytrends.request import TrendReq
import pandas as pd
import time
startTime = time.time()
pytrend = TrendReq(hl='nl-NL', tz=360)
df = wb = gc.open_by_url('https://docs.google.com/spreadsheets/d/1QE1QilM-GDdQle6eVunepqG5RNWv39xO0By84C19Ehc/edit?usp=sharing')
sheet = wb.sheet1
df2 = sheet.col_values(5)
d_from = sheet.acell('B7').value
d_to = sheet.acell('B8').value
geo1 = sheet.acell('B10').value
dataset = []
for x in range(1,len(df2)):
     keywords = [df2[x]]
     pytrend.build_payload(
     kw_list=keywords,
     cat=0,
     timeframe= str(d_from + " " + d_to),
     geo= str(geo1))
     data = pytrend.interest_over_time()
     if not data.empty:
          data = data.drop(labels=['isPartial'],axis='columns')
          dataset.append(data)
result = pd.concat(dataset, axis=1)
result.to_csv('search_trends_DOWNLOAD_ME.csv')
!cp search_trends_DOWNLOAD_ME.csv "/content/drive/My Drive/Colab Notebooks/Output"
executionTime = (time.time() - startTime)
print('Execution time in sec.: ' + str(executionTime))

我使用的关键字位于df = wb = gc.open_by_url. 它是一个包含位置、语言和关键字的 G 表。

Answer 1

这件事之前发生在我身上，只是错过了输入文件的路径\url。再次检查路径。