Question

编写一个pyhton程序来保存.txt文件中的数据，当创建文件路径时，它出错，路径中有“\”，为什么

程序：

#storage data in .txt file
def data_save_txt(type,data,id,name):
    # get the date when storage data
    date_storage()
    #create the data storage directory
    txt_parent_directory = os.path.join("dataset","txt",type,glovar.date)

    directory_create(txt_parent_directory)
    #write data in .txt
    if type == "group_members":
        txt_file_prefix = "gm"
    elif type == "group_feed":
        txt_file_prefix = "gf"
    elif type == "public_figure_posts":
        txt_file_prefix = "pfp"
    elif "user_" in type:
        txt_parent_directory = os.path.join("dataset", "txt", "user", type, glovar.date)
        txt_file_prefix = type
    txt_file_directory = os.path.join(txt_parent_directory,txt_file_prefix+"_"+time_storage()+"_"+id+"_"+name+".txt")
    txt_file_object = open(txt_file_directory,"w",encoding="utf-8")

    #to show the line number of stored data
    line_number = 1
    if isinstance(data,str):
        txt_file_object.write(data)
    elif isinstance(data,list):
        group_info_data = ''
        for i in range(len(data)):
            for (k, v) in data[i].items():
                group_info_data = group_info_data + str(line_number) + ")   " + k + ':' + str(v) + ','
            group_info_data += '\n'
            line_number += 1
        txt_file_object.write(group_info_data)
    txt_file_object.close()

运行时，错误：

Traceback (most recent call last):
  File "C:/Python/PyCharmProject/FaceBookCrawl/FBCrawl.py", line 255, in <module>
    user_info_download.user_info_storage(user_id,user_info_type,u_access_token)
  File "C:\Python\PyCharmProject\FaceBookCrawl\user_info_download.py", line 79, in user_info_storage
    data_storage.data_save_txt(type,user_info,user_id,user_name)
  File "C:\Python\PyCharmProject\FaceBookCrawl\data_storage.py", line 29, in data_save_txt
    txt_file_object = open(txt_file_directory,"w",encoding="utf-8")
  FileNotFoundError: [Errno 2] No such file or directory: 'dataset\\txt\\user\\user_friends\\20170121\\user_friends_20170121-124531_110286969468305_Du Bin.txt'

Process finished with exit code 1

指出

if "user_" in type:
        txt_parent_directory = os.path.join("dataset", "txt", "user", type, glovar.date)

这句话错误，路径中有“\”，但是我使用os.path.join，为什么，谁可以帮我解决这个问题

Answer 1

致电

txt_parent_directory = os.path.join("dataset", "txt", "user", type, glovar.date)
txt_file_directory = os.path.join(txt_parent_directory,txt_file_prefix+"_"+time_storage()+"_"+id+"_"+name+".txt")

您正在构建文件名字符串'dataset\txt\user\user_friends\20170121\user_friends_20170121-124531_110286969468305_Du Bin.txt'双反斜杠只是Python显示某些特殊字符的方式。

但它不会创建实际的文件夹。运行类似

的内容

os.makedirs()

在尝试创建文件之前，在目录上

。

Answer 2

我相信根据错误，您尝试在不存在的目录中创建文件。

即问题出在目录名称中，而不是文件名。

文件路径os.path.join中的“\\”

2 个答案: