在我的主机中,我有4个cpu核心(如Python库所示):
python
Python 2.7.8 (v2.7.8:ee879c0ffa11, Jun 29 2014, 21:07:35)
[GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import multiprocessing
>>>
我有一个python脚本,它在1个输入和处理输出。但是,当我使用批处理文件调用它时,如下所示,它无法处理...
cd \
cd ABC
cd input
for %%f in (*.txt) do (
echo "%%~nf"
"C:\Python32\python.exe" "D:\ABC\deployment code\add_null.py" "%%~nf.txt" "%%~nf_processed.txt"
)
有人知道问题出在哪里吗?
我正在使用celery与redis broker一个接一个地运行任务,但当我运行2个任务时,在完成第一个redis之后,第二个任务会出现超时套接字错误,因此第二个任务将失败。
File "/home/ubuntu/.virtualenvs/aide_venv/local/lib/python2.7/site-packages/celery/result.py", line 194, in get
on_message=on_message,
File "/home/ubuntu/.virtualenvs/aide_venv/local/lib/python2.7/sit
我正在尝试拆分一个字符串并将每个单词添加到一个单独的行中。
with data as (
select 100 as id, 'python java' as src from dual
)
select id, level as lvl,
regexp_substr( src || '" "' , '([[:space:]0-9/:])', 1, level, null, 1 ) as token
from data
connect by level <= regexp_count( src |
所以我不确定我的问题出在哪里。尝试配置一个virtualenv这是我得到的错误:
20:59:51 $ virtualenv测试-p /usr/local/bin/python
Running virtualenv with interpreter /usr/local/bin/python
New python executable in test/bin/python
Please make sure you remove any previous custom paths from your /Users/nlang/.pydistutils.cfg file.
Overwriting
这是我的python文件'app.py‘ import redis
cache = redis.Redis(host='redis', port=6379)
for i in range(8):
cache.set(i,i)
for i in range(8):
print(cache.get(i)) 这是我的Dockerfile FROM python:3.7-alpine
COPY . /code
WORKDIR /code
COPY requirements.txt requirements.txt
RUN pip install -r
我正在尝试执行python list comprehension,但是我得到了一个语法错误。我对python list comprehension并不熟悉,所以我似乎不明白为什么这会出错。
>>> s = set()
>>> def in_set(s, val):
if val in s:
return True
else:
s.add(val)
return False
>>> [x for x in v0.outV() if x.e
每当我试图导入以前安装的任何软件包时,都会出现以下错误。我不知道我做错了什么。
C:\Users\David\Documents\Django_directory\usws15\eRoutes>python manage.py runserver 8002
Performing system checks...
Unhandled exception in thread started by <function check_errors.<locals>.wrapper at 0x000001FF0416A6A8>
Traceback (most recent
我试图理解在Python和Java中读取jpg图像的不同之处。对于两种语言,opencv实现似乎是不同的。
Python
## create a random image and save it
img = np.random.randint(0,200,size=(192,336,3))
cv.imwrite("rnd.jpg",img)
## read the image in python
img = cv.imread("rnd.jpg")
img.max(axis=(0,1))
## result: array([255, 228, 255], dt
运行python train.py --logtostderr --train_dir = training / --pipeline_config_path = training / faster_rcnn_inception_v2_pets.config时出错
\trainer.py:260: create_global_step (from tensorflow.contrib.framework.python.ops.variables) is deprecated and will be removed in a future version.
Instructions fo
import pandas
#Ignores a value is trying to be set on a copy of a slice from a DataFrame(side note if I shouldn't be doing this please let me know too)
pandas.options.mode.chained_assignment = None
#opens file
f = pandas.read_excel('.../foo.xlsx', sheetname=0)
#sort by header_number a
我使用BeautifulSoup时出了一个奇怪的错误。
下面是我正在运行的代码片段:
while True:
listing_soup = soupify(urlget(page_url))
for i in listing_soup.findAll('div', 'searchResultContent'):
# do some stuff ...
下面是抛出的异常:
Traceback (most recent call last):
File "C:\path\to\script.py", line 71