Flask app on Pythonanywhere - FileNotFoundError: [Errno 2] No such file or directory
Flask app on Pythonanywhere - FileNotFoundError: [Errno 2] No such file or directory
你知道我部署在 pythonanywhere 上的 flask 应用程序有什么问题吗？
当我尝试访问端点浏览器时 return 我的错误：
Internal Server Error The server encountered an internal error and was
unable to complete your request. Either the server is overloaded or
there is an error in the application.
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'
函数代码在这里：
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 上一切正常，但我无法使用它 - 它是一个抓取应用程序，有些请求超过 30 秒。
使用 PythonAnyWhere，确保提供 .csv 文件的完整路径（您需要为正在使用的任何文件指定完整路径，例如 .db 或 .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)
这又可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:
...
你知道我部署在 pythonanywhere 上的 flask 应用程序有什么问题吗？ 当我尝试访问端点浏览器时 return 我的错误：
Internal Server Error The server encountered an internal error and was unable to complete your request. Either the server is overloaded or there is an error in the application.
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'
函数代码在这里：
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 上一切正常，但我无法使用它 - 它是一个抓取应用程序，有些请求超过 30 秒。
使用 PythonAnyWhere，确保提供 .csv 文件的完整路径（您需要为正在使用的任何文件指定完整路径，例如 .db 或 .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)
这又可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:
...