当我尝试从数据帧中删除列“header=”时:

#import data
for path in filepaths:
    df = pd.read_csv(r"{}".format(path), header=6, sep="delimiter", engine="python")
#delete column "Header="
    del df['Header=']

出现以下错误:

    File "pandas\_libs\index.pyx", line 111, in pandas._libs.index.IndexEngine.get_loc
      File "pandas\_libs\index.pyx", line 138, in pandas._libs.index.IndexEngine.get_loc
      File "pandas\_libs\hashtable_class_helper.pxi", line 1619, in pandas._libs.hashtable.PyObjectHashTable.get_item
      File "pandas\_libs\hashtable_class_helper.pxi", line 1627, in pandas._libs.hashtable.PyObjectHashTable.get_item
    KeyError: 'Header='

当我尝试drop函数时:

for path in filepaths:
    df = pd.read_csv(r"{}".format(path), header=6, sep="delimiter", engine="python")
    df.drop("Header=", axis=1, inplace=True)

出现以下错误:

raise KeyError(f"{labels[mask]} not found in axis")
KeyError: "['Header='] not found in axis"

从这些错误看来，我似乎没有一个名为“header=”的列，但是当我运行这段代码时:

for path in filepaths:
    df = pd.read_csv(r"{}".format(path), header=6, sep="delimiter", engine="python")
    all_files.append(df)

print(df.columns)

我得到以下输出:

Index(['Header=,"PK","RT","Area Pct","Library/ID","Ref","CAS","Qual"'], dtype='object')

其中“header=”是列名之一

最后，当我打印时，数据的头看起来是这样的:

print(df.head)

<bound method NDFrame.head of    Header=,"PK","RT","Area Pct","Library/ID","Ref","CAS","Qual"
0   1=,  1,  1.3671,27.3306,"Nitrogen oxide (N2O) ...          
1   2=,  2,  2.5023, 0.2947,"Methyl-d3 1-Dideuteri...          
2   3=,  3,  4.1156, 0.6791,"Heptane, 2,4-dimethyl...          
3   4=,  4,  4.6653, 0.3038,"Octane, 4-methyl- (CA...          
4   5=,  5,  4.7131,32.2856,"Acetamide, N,N-dimeth...          
5   6=,  6,  6.1590,28.7519,"Phenol (CAS) $$ Izal ...          
6   7=,  7,  6.3144, 0.1824,"Acetamide, 2-chloro- ...          
7   8=,  8,  6.8044, 5.7176,"l-Limonene $$ Cyclohe...          
8   9=,  9,  7.0911, 1.1867,"DECANE, 3,7-DIMETHYL-...          
9   10=, 10,  7.1509, 0.3323,"(R,R)-3,8-Dimethylde...          
10  11=, 11,  7.5811, 0.6304,"DECANE, 3,7-DIMETHYL...          
11  12=, 12,  7.6408, 0.1889,"Decane, 4-methyl- (C...          
12  13=, 13,  8.0949, 0.2466,"6-Aza-5,7,12,14-tetr...          
13  14=, 14,  9.4094, 0.5843,"Hexadecane, 2,6,10,1...          
14  15=, 15,  9.8038, 0.3497,"2,4-di(trimethylsilo...          
15  16=, 16,  9.8396, 0.1937,"Eicosane (CAS) $$ n-...          
16  17=, 17, 11.2736, 0.5516,"TETRADECAMETHYLCYCLO...          
17  18=, 18, 11.4290, 0.1900,"Phenol, 2,4-bis(1,1-...          >