没有来自 Jupyter Notebook 的 OUTPUT。 未显示错误

Question

我正在运行 Jupyter 笔记本，但没有收到任何 output 或错误告诉我是否有问题。 我尝试按照其他一些线程的建议安装龙卷风以及命令pip install notebook --upgrade

虽然我不认为我的代码有问题。

任何帮助都非常感谢。

import os
import numpy as np
import pandas as pd
import cv2
from glob import glob

import tensorflow as tf
from tensorflow.keras.layers import *
from tensorflow.keras.applications import MobileNetV2
from tensorflow.keras.callbacks import ModelCheckpoint, ReduceLROnPlateau
from tensorflow.keras.optimizers import Adam 

from sklearn.model_selection import train_test_split

if __name__=="_main_": 
    path="dog-breed-identification/"
    train_path = os.path.join(path, "train/*")
    train_path = os.path.join(path, "test/*")
    train_path = os.path.join(path, "labels.csv")

labels_df = pd.read_csv(labels_path)

#name of column in csv
breed = labels_df["breed"].unique()
print("Number of Breed: ", len(breed))
enter code here

Answer 1

事实证明，如果我删除

if __name__=="_main_": 

我得到一个 output