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How to properly import a selfsigned certificate into Java keystore that is available to all Java app
...e change is discarded.
Copy the file cacerts back where you found it.
On Linux:
You can download the SSL certificate from a web server that is already using it like this:
$ echo -n | openssl s_client -connect www.example.com:443 | \
sed -ne '/-BEGIN CERTIFICATE-/,/-END CERTIFICATE-/p' > /t...
How do I access the command history from IDLE?
...dentally, why don't you try a better (less ugly, for starters) shell like bpython or ipython?
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How to create Android Facebook Key Hash?
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For Linux and Mac
Open Terminal :
For Debug Build
keytool -exportcert -alias androiddebugkey -keystore debug.keystore | openssl sha1 -binary | openssl base64
You will find debug.keystore in the ".android" folder. Copy it an...
How to ignore xargs commands if stdin input is empty?
...uname -is
SunOS sun4v
$ xargs -n1 echo blah < /dev/null
$ uname -is
Linux x86_64
$ xargs --version | head -1
xargs (GNU findutils) 4.7.0-git
$ xargs -n1 echo blah < /dev/null
blah
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nosetests is capturing the output of my print statements. How to circumvent this?
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python3.5 -m "nose" --nocapture
– Alex Punnen
Mar 19 '18 at 9:24
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Getting error: Peer authentication failed for user “postgres”, when trying to get pgsql working with
...ng this file, don't forget to restart your PostgreSQL server. If you're on Linux, that would be sudo service postgresql restart.
These are brief descriptions of both options according to the official PostgreSQL docs on authentication methods.
Peer authentication
The peer authentication method ...
How to run script as another user without password?
... your trying to start screen as another user then this might be helpfull - linuxquestions.org/questions/linux-software-2/…
– Mint
Jan 6 '15 at 21:21
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Sort a list by multiple attributes?
...Or you can achieve the same using itemgetter (which is faster and avoids a Python function call):
import operator
s = sorted(s, key = operator.itemgetter(1, 2))
And notice that here you can use sort instead of using sorted and then reassigning:
s.sort(key = operator.itemgetter(1, 2))
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Remove the first character of a string
...
python 2.x
s = ":dfa:sif:e"
print s[1:]
python 3.x
s = ":dfa:sif:e"
print(s[1:])
both prints
dfa:sif:e
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sqlite3.ProgrammingError: Incorrect number of bindings supplied. The current statement uses 1, and t
... treated as the input sequence. If that string is 74 characters long, then Python sees that as 74 separate bind values, each one character long.
>>> len(img)
74
>>> len((img,))
1
If you find it easier to read, you can also use a list literal:
cursor.execute('INSERT INTO images ...