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Mail multipart/alternative vs multipart/mixed
...n', 'attachment', filename=filename)
message.attach(msg)
return {'raw': base64.urlsafe_b64encode(message.as_string())}
Here is the full code for sending an email containing html/text/attachment:
import httplib2
import os
import oauth2client
from oauth2client import client, tools
import b...
What causes javac to issue the “uses unchecked or unsafe operations” warning
...switch, it will give you more detailed information.
As well as the use of raw types (as described by the other answers), an unchecked cast can also cause the warning.
Once you've compiled with -Xlint, you should be able to rework your code to avoid the warning. This is not always possible, partic...
Copy Notepad++ text with formatting?
...ipboard] and set it to CTRL+SHIFT+C --> Instant joy. CTRL+C to copy the raw text, CTRL+SHIFT+C to copy with formatting. This should be default.
– Dennis G
Nov 8 '12 at 8:39
...
What is the theoretical maximum number of open TCP connections that a modern Linux box can have
...
If you used a raw socket (SOCK_RAW) and re-implemented TCP in userland, I think the answer is limited in this case only by the number of (local address, source port, destination address, destination port) tuples (~2^64 per local address).
...
What is the difference between JDK and JRE?
...ence between JDK and JRE, the best is to read the Oracle documentation and consult the diagram :
Java Runtime Environment (JRE)
The Java Runtime Environment (JRE) provides the libraries, the Java Virtual Machine, and other components to run applets and applications written in the Java programming la...
How does grep run so fast?
...actually looks at (and it skips many
bytes entirely).
GNU grep uses raw Unix input system calls and avoids copying data
after reading it. Moreover, GNU grep AVOIDS BREAKING THE INPUT INTO
LINES. Looking for newlines would slow grep down by a factor of
several times, because to find th...
Convert audio files to mp3 using ffmpeg
... input streams this option only makes sense for audio grabbing devices and raw demuxers and is mapped to the corresponding demuxer options.
-ac - Set the number of audio channels. For output streams it is set by default to the number of input audio channels. For input streams this option only ma...
Difference between single quotes and double quotes in Javascript [duplicate]
...
Only if you're writing RAW JSON. If you're writing a Javascript object, {key: 'value'} works exactly the same as {"key": "value"} and is a lot quicker to type.
– Orwellophile
Jun 16 '15 at 12:21
...
Is the creation of Java class files deterministic?
...or the compilers to produce the same bytecode on each platform. You should consult the different vendors' javac utility to have a specific answer.
I will show a practical example for this with file ordering.
Let's say that we have 2 jar files: my1.jar and My2.jar. They're put in the lib director...
How do MySQL indexes work?
... table scan).
On the other hand, an index has a list of keywords, so you'd consult the index and see that storage is mentioned on pages 113-120,231 and 354. Then you could flip to those pages directly, without searching (that's a search with an index, somewhat faster).
Of course, how useful the ind...