Pythonanywhere上的Flask应用程序 - FileNotFoundError:[Errno 2]没有这样的文件或目录

时间:2018-05-02 18:18:37

标签: python flask pythonanywhere

你知道我在pythonanywhere上部署的烧瓶应用程序有什么问题吗? 当我尝试访问端点浏览器时返回错误:

  

内部服务器错误服务器遇到内部错误   无法完成您的请求。服务器过载或   应用程序中存在错误。

错误日志:

2018-05-02 18:06:51,507:   File "/home/jobad/.virtualenvs/deploy/lib/python3.6/site-packages/flask/app.py", line 1598, in dispatch_request
2018-05-02 18:06:51,507:     return self.view_functions[rule.endpoint](**req.view_args)
2018-05-02 18:06:51,507:   File "/home/jobad/scrapping/app.py", line 75, in antal
2018-05-02 18:06:51,507:     antal_export('Antal')
2018-05-02 18:06:51,507:   File "/home/jobad/scrapping/antalpl.py", line 100, in antal_export
2018-05-02 18:06:51,507:     with open( 'export/%s.csv' %company_name, 'w', newline='', encoding='utf-8' ) as csvfile:
2018-05-02 18:06:51,508: FileNotFoundError: [Errno 2] No such file or directory: 'export/Antal.csv'

这里的功能代码:

def antal_export(company_name):
    global a
    test = []

    for document in a:
        event_obj = {}
        event_obj['company_name'] = document['company_name']
        event_obj['category'] = document['category']
        event_obj['offers'] = document['offers']
        test.append( event_obj )

    try:
        os.remove( 'export/%s.csv' %company_name )
        with open( 'export/%s.csv' %company_name, 'w', newline='', encoding='utf-8') as csvfile:
            fields = ['category', 'offerts']
            writer = csv.DictWriter( csvfile, fieldnames=fields, delimiter=';' )
            writer.writeheader()
            writer.writerows( test )
    except:
        with open( 'export/%s.csv' %company_name, 'w', newline='', encoding='utf-8' ) as csvfile:
            fields = ['company_name', 'category', 'offers']
            writer = csv.DictWriter( csvfile, fieldnames=fields, delimiter=';' )
            writer.writeheader()
            writer.writerows( test )

    a = []

和文件夹树:

(deploy) 18:06 ~/scrapping (master)$ ls
Procfile     antal2.py   experispl.py     graftonpl.py  infopracapl.py    pracapl.py     requirements.txt
__pycache__  antalpl.py  export           hayspl.py     manpower.py       pracujpl.py    static
all.py       app.py      goldenlinepl.py  hrkpl.py      michaelpagepl.py  randstadpl.py  templates

在heroku上一切都很好但是我不能使用它 - 它是一个抓取应用程序,一些请求超过30秒。

1 个答案:

答案 0 :(得分:3)

使用PythonAnyWhere,确保提供.csv文件的完整路径(您需要为所使用的任何文件指定完整路径,例如.db.txt文件)。根据您提供的回溯和文件夹树,它应该是:

path = '/home/jobad/scrapping/export/{}.csv'.format(company_name)

反过来,它可以用于您需要该文件的所有操作:

os.remove(path)
with open(path, 'w', newline='', encoding='utf-8') as csvfile:
   ...
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