我有兩個檔案夾，1和2. 我想去每個有檔案的檔案夾Test.xlsx。我嘗試迭代file_loc使用i in range(1,3)，但出現錯誤。如果我提到1或2在file_loc.
import pandas as pd
import numpy as np
for i in range(1,3):
file_loc = "C:\\Users\\USER\\OneDrive - Technion\\Research_Technion\\Python_PNM\\Sept12_2022\\i\\Test.xlsx"
df = pd.read_excel(file_loc, index_col=None, na_values=['NA'], usecols="A,C:AA")
A=df["N"].to_numpy()
print([A])
A = [x for x in A if str(x) != 'nan']
print(A)
A = [eval(e) for e in A]
print(A)
A=np.array(A)
print([A])
A_mean=[]
for i in range(0,len(A)):
A_mean.append(np.mean(A[i]))
print(*A_mean, sep='\n')
錯誤是
Traceback (most recent call last):
File "C:\Users\USER\OneDrive - Technion\Research_Technion\Python_PNM\Sept12_2022\Test.py", line 12, in <module>
df = pd.read_excel(file_loc, index_col=None, na_values=['NA'], usecols="A,C:AA")
File "C:\Users\USER\anaconda3\lib\site-packages\pandas\util\_decorators.py", line 311, in wrapper
return func(*args, **kwargs)
File "C:\Users\USER\anaconda3\lib\site-packages\pandas\io\excel\_base.py", line 364, in read_excel
io = ExcelFile(io, storage_options=storage_options, engine=engine)
File "C:\Users\USER\anaconda3\lib\site-packages\pandas\io\excel\_base.py", line 1191, in __init__
ext = inspect_excel_format(
File "C:\Users\USER\anaconda3\lib\site-packages\pandas\io\excel\_base.py", line 1070, in inspect_excel_format
with get_handle(
File "C:\Users\USER\anaconda3\lib\site-packages\pandas\io\common.py", line 711, in get_handle
handle = open(handle, ioargs.mode)
FileNotFoundError: [Errno 2] No such file or directory: 'C:\\Users\\USER\\OneDrive - Technion\\Research_Technion\\Python_PNM\\Sept12_2022\\i\\Test.xlsx'
uj5u.com熱心網友回復：
for i in range(1,3):
file_loc = f"C:\\Users\\USER\\OneDrive - Technion\\Research_Technion\\Python_PNM\\Sept12_2022\\{i}\\Test.xlsx"
...
確保您輸入了正確的路徑
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