a.count(0)总是返回11,那么我应该怎么做才能打折False并返回10？
a = ["a",0,0,"b",None,"c","d",0,1,False,0,1,0,3,[],0,1,9,0,0,{},0,0,9]
我为我的项目选择了 vuetify。很棒的前端框架。问题是，如何使 v-parallax 显示完整图像而不进行裁剪。下面显示了一些代码，完整的代码托管在代码笔中。
<v-parallax
src="https://blog-images-bucket.s3.amazonaws.com/media/private/carlos-muza-84523_u62x84y.jpg"
height="600"
jumbotron
></v-parallax>
https://codepen.io/tonywangcn/pen/WdENYQ
谢谢！
我用scrapy抓取了一个网站并将数据存储在json文件中.
链接到json文件:https://drive.google.com/file/d/0B6JCr_BzSFMHLURsTGdORmlPX0E/view？ usp =sharing
但是json不是标准的json并且给出了错误:
>>> import json
>>> with open("/root/code/itjuzi/itjuzi/investorinfo.json") as file:
... data = json.load(file)
...
Traceback (most recent call last):
File "<stdin>", line 2, in <module>
File "/root/anaconda2/lib/python2.7/json/__init__.py", line 291, in load
**kw)
File "/root/anaconda2/lib/python2.7/json/__init__.py", line 339, in loads
return _default_decoder.decode(s)
File "/root/anaconda2/lib/python2.7/json/decoder.py", line 367, in decode
raise ValueError(errmsg("Extra data", s, end, len(s)))
ValueError: Extra data: line 3 column 2 - line 3697 column 2 (char 45 - 3661517)
然后我尝试了这个:
with open('/root/code/itjuzi/itjuzi/investorinfo.json','rb') as f: …我选择spacy来处理各种文本，因为与nltk相比，它具有lemmatation的性能。但是，当我处理数百万个短文本时，它总是消耗掉我所有的内存（32G）并崩溃了。没有它，仅需几分钟，而消耗的内存不足10G。
使用此方法有问题吗？有没有更好的解决方案来提高性能？谢谢！
def tokenizer(text):
try:
tokens = [ word for sent in sent_tokenize(text) for word in word_tokenize(sent)]
tokens = list(filter(lambda t: t.lower() not in stop_words, tokens))
tokens = list(filter(lambda t: t not in punctuation, tokens))
tokens = list(filter(lambda t: len(t) > 4, tokens))
filtered_tokens = []
for token in tokens:
if re.search('[a-zA-Z]', token):
filtered_tokens.append(token)
spacy_parsed = nlp(' '.join(filtered_tokens))
filtered_tokens = [token.lemma_ for token in spacy_parsed]
return filtered_tokens
except Exception as e:
raise e
达拉斯并行计算
ddata = dd.from_pandas(res, npartitions=50)
def dask_tokenizer(df): …https://joshuarogers.net/passing-static-credentials-upstream-through-nginx http://shairosenfeld.blogspot.jp/2011/03/authorization-header-in-nginx-for.html
我用Google搜索了这两个关于使用Nginx代理基本身份验证的教程.我在本地主机中配置了Nginx服务器,然后重新启动.但它似乎不起作用.我可以在没有auth的情况下访问主机(http://10.211.55.12:5601和http://10.211.55.12:80重定向到之前的同一页面).
" http://10.211.55.12:5601 "中的服务是Kibana,我想用auth来证明它.
# Default server configuration
#
server {
listen 80 default_server;
listen [::]:80 default_server;
server_name _;
location / {
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_pass http://10.211.55.12:5601;
proxy_set_header Authorization "Basic a2luZzppc25ha2Vk";
}
}