我无法在FastAPI中读取上载的csv文件

2024-09-22 14:25:49 发布

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我正在尝试遍历csv文件。但是，接收到的文件很难读取。我搜索了这个，我找不到一个清晰的解决方案

@app.get("/uploadsequence/")
async def upload_sequence_form():
    return HTMLResponse("""
            <!DOCTYPE html>
            <html>
                <head>
                    <title>sequence upload</title>
                </head>
                <body>
                    <h1>upload sequence .CSV file</h1>
                    <form method='post' action='/uploadsequence/' enctype='multipart/form-data'>
                        Upload a csv file: <input type='file' name='csv_file'>
                        <input type='submit' value='Upload'>
                    </form>
                </body>
            </html>
            """)

@app.post("/uploadsequence/")
async def upload_sequence(csv_file: UploadFile = File(...), db = Depends(get_db)):
        csv_file_encoded = TextIOWrapper(csv_file.file, encoding='utf-8')
        csv_reader = csv.DictReader(csv_file_encoded)
        for row in csv_reader:
            if row["Well Type"] in ["RIG MAINTENANCE","RIG MOVE","RIG COMMISSIONING","ABANDONMENT","LEARNINGCURVE"]:
                crud.insert_sequence_record(db=db, row=row,is_drilling=False)
            else:
                crud.insert_sequence_record(db=db, row=row,is_drilling=True)

它给了我这个错误： csv_file_encoded = TextIOWrapper(csv_file.file, encoding='utf-8') AttributeError: 'SpooledTemporaryFile' object has no attribute 'readable'

我将UploadFile更改为bytes：

@app.post("/uploadsequence/")
async def upload_sequence(csv_file: bytes = File(...), db = Depends(get_db)):
        csv_file_encoded = TextIOWrapper(csv_file, encoding='utf-8')
        csv_reader = csv.DictReader(csv_file_encoded)
        for row in csv_reader:
            if row["Well Type"] in ["RIG MAINTENANCE","RIG MOVE","RIG COMMISSIONING","ABANDONMENT","LEARNINGCURVE"]:
                crud.insert_sequence_record(db=db, row=row,is_drilling=False)
            else:
                crud.insert_sequence_record(db=db, row=row,is_drilling=True)

它给出了这个错误：csv_file_encoded = TextIOWrapper(csv_file, encoding='utf-8') AttributeError: 'bytes' object has no attribute 'readable'

我摆脱了编码：

@app.post("/uploadsequence/")
async def upload_sequence(csv_file: bytes = File(...), db = Depends(get_db)):
        # csv_file_encoded = TextIOWrapper(csv_file, encoding='utf-8')
        csv_reader = csv.DictReader(csv_file)
        for row in csv_reader:
            if row["Well Type"] in ["RIG MAINTENANCE","RIG MOVE","RIG COMMISSIONING","ABANDONMENT","LEARNINGCURVE"]:
                crud.insert_sequence_record(db=db, row=row,is_drilling=False)
            else:
                crud.insert_sequence_record(db=db, row=row,is_drilling=True)

它给出了以下错误： self._fieldnames = next(self.reader) _csv.Error: iterator should return strings, not int (did you open the file in text mode?)


Tags： csvindbisrecordreaderfilerow
2条回答
网友
1楼 · 编辑于 2024-09-22 14:25:49

我使用以下命令读取csv文件codecs.iterdecode为我工作

csv_reader = csv.reader(codecs.iterdecode(csv_file.file,'utf-8'))
网友
2楼 · 编辑于 2024-09-22 14:25:49
@app.post("/submitform")
async def handle_form(assignment_file: UploadFile = File(...)):
   print(assignment_file.filename)
   csv_reader = pd.read_csv(assignment_file.file)
   
   print(csv_reader)
   //else return response
   // csv data will be stored in the csv_reader

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