如何在 jupyter notebook 中指定文件路径

Question

在 jupyter notebook/google colab 中指定文件路径时遇到问题。这是我找到的示例代码：import csvcsvFile = 'myData.csv'xmlFile = 'myData.xml'csvData = csv.reader(open(csvFile))xmlData = open(xmlFile, 'w')我不知道上面代码的作者将 myData.csv 放在哪里，所以我尝试了这段代码来定位我的文件：csvFile = 'C:\Users\...\myData.csv'但我收到此错误：SyntaxError: (unicode error) 'unicodeescape' codec can't decode bytes in position 2-3: truncated \UXXXXXXXX escape我也试过这段代码：csvFile = r'C:\Users\...\myData.csv'但我收到此错误： FileNotFoundError: [Errno 2] No such file or directory: 'C:\Users\...\myData.csv'我的问题是： 1. 上面代码的作者将 myData.csv 放在哪里？2.如何指定文件位置？

Answer 1

我尝试使用正斜杠和双反斜杠。两者都有效。

'C:\\Users\\SAVK\\Downloads\\Ex_Files_Intro_Data_Science\\Ex_Files_Intro_Data_Science\\Exercise Files\\state_baby_names.csv'

'C:/Users/SAVK/Downloads/Ex_Files_Intro_Data_Science/Ex_Files_Intro_Data_Science/Exercise Files/us_baby_names.csv'

例子 ：

states_babies = pd.read_csv('C:\\Users\\SAVK\\Downloads\\Ex_Files_Intro_Data_Science\\Ex_Files_Intro_Data_Science\\Exercise Files\\state_baby_names.csv');

states_babies = pd.read_csv('C:/Users/SAVK/Downloads/Ex_Files_Intro_Data_Science/Ex_Files_Intro_Data_Science/Exercise Files/us_baby_names.csv');

Answer 2

1. 如果作者直接调用该文件，则它位于运行 Jupyter Notebook 的同一文件夹中

2. 以下之一应该可以从不同位置调用文件：

一个。用双引号替换单引号并转义斜杠 ex。csvFile = "C:\\Users\\...\\myData.csv"

湾。用双引号替换单引号并使用正斜杠 ex。csvFile = "C:/Users/.../myData.csv"

Answer 3

我通过将 Google Colab 安装到 Google Drive 解决了这个问题。这是我挂载到 Google Drive 后的路径：

csvFile = '/content/drive/My Drive/Colab Notebooks/myData.csv.txt'

xmlFile = '/content/drive/My Drive/Colab Notebooks/myData.xml'