after I install pyspider in python3.7, I always get an error after typing pyspider on the command line:
File "c:\ users\ 13733\ appdata\ local\ programs\ python\ python37\ lib\ site-packages\ pyspider\ run.py", line 231
async=True, get_object=False, no_input=False):
^SyntaxError: invalid syntax
this is a really strange mistake
async and await have been added to the reserved keywords since python3.7. Reference: python.org/3.7/whatsnew/3.7.html" rel=" nofollow noreferrer > What's New In Python 3.7 , so async and await cannot be used as parameter names of functions.
such as class is also an internally reserved keyword:
>>> def foo(class=None, bar=None):
File "<stdin>", line 1
def foo(class=None, bar=None):
^
SyntaxError: invalid syntax see which keywords can be used keyword module, for example, in python3.6:
>>> import keyword
>>> keyword.kwlist
['False', 'None', 'True', 'and', 'as', 'assert', 'break', 'class', 'continue', 'def', 'del', 'elif', 'else', 'except', 'finally', 'for', 'from', 'global', 'if', 'import', 'in', 'is', 'lambda', 'nonlocal', 'not', 'or', 'pass', 'raise', 'return', 'try', 'while', 'with', 'yield'] Let's take a look at the partial source code of ider" rel=" nofollow noreferrer > pyspider :
ider/blob/master/pyspider/run.py-sharpL231" rel=" nofollow noreferrer "run.py :
def fetcher(ctx, xmlrpc, xmlrpc_host, xmlrpc_port, poolsize, proxy, user_agent,
timeout, phantomjs_endpoint, splash_endpoint, fetcher_cls,
async=True, get_object=False, no_input=False): here async is used as the parameter name, so an error will be reported under python3.7.
to sum up, you need to solve this problem, you can:
async as the parameter name to make the code compatible with python3.7.. Refer to this ider/pull/803" rel=" nofollow noreferrer "> Pull Request . @ vibiu see that you merged this PR, with issue-sharp803, so why does the latest version of v0.3.10 still have this problem?
there is still this problem
I installed with anaconda, you can use the command: conda install python=3.6 to lower the python version
agree to the first floor, just replace the async (for example, change it to shark), and be careful not to change the part of the import package.
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