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How to convert Strings to and from UTF8 byte arrays in Java
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Convert from String to byte[]:
String s = "some text here";
byte[] b = s.getBytes(StandardCharsets.UTF_8);
Convert from byte[] to String:
byte[] b = {(byte) 99, (byte)97, (byte)116};
String s = new String(b, StandardCharsets.US_A...
How to change the type of a field?
I am trying to change the type of a field from within the mongo shell.
14 Answers
14
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How do I read image data from a URL in Python?
... the StringIO and cStringIO modules are gone.
In Python3 you should use:
from PIL import Image
import requests
from io import BytesIO
response = requests.get(url)
img = Image.open(BytesIO(response.content))
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Token Authentication for RESTful API: should the token be periodically changed?
..., however you can extend it to achieve this functionality.
For example:
from rest_framework.authentication import TokenAuthentication, get_authorization_header
from rest_framework.exceptions import AuthenticationFailed
class ExpiringTokenAuthentication(TokenAuthentication):
def authenticate_...
Can't pickle when using multiprocessing Pool.map()
...round and one forum post recommended increasing the maximum depth to 1500 (from the default 1000) but I had no joy there. To be honest, I can't see what part (of my code, at least) could be recursing out of control, unless for some reason the code is pickling and unpickling in a loop, due to slight ...
How do I write good/correct package __init__.py files
...y importing modules
http://docs.python.org/tutorial/modules.html#importing-from-a-package
using __all__ and import * is redundant, only __all__ is needed
I think one of the most powerful reasons to use import * in an __init__.py to import packages is to be able to refactor a script that has grown ...
Why does C++ rand() seem to generate only numbers of the same order of magnitude?
...an important one. Might be a good place to point out various distributions from the C++11 standard library.
– leftaroundabout
Jun 20 '13 at 21:43
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Why is it OK to return a 'vector' from a function?
... several times. words is a local vector. How is it possible to return it from a function?
6 Answers
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How to run the sftp command with a password from Bash script?
I need to transfer a log file to a remote host using sftp from a Linux host. I have been provided credentials for the same from my operations group. However, since I don't have control over other host, I cannot generate and share RSA keys with the other host.
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MySQL root access from all hosts
...ttached to you OS, yo must especify one of this network in the bind-addres from my.conf file.
an example:
[mysqld]
bind-address = 127.100.10.234
this ip is from a ethX configuration.
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