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How to create a GUID/UUID in Python
...ther using it in any UUID contexts, you may as well just use random.getrandbits(128).to_bytes(16, 'little') or (for crypto randomness) os.urandom(16) and get a full 128 bits of random (UUIDv4 uses 6-7 bits on version info). Or use only 15 bytes (losing 1-2 bits of random vs. UUIDv4) and avoid the ne...
Test if executable exists in Python?
...nts.
Edit: path.strip('"') seems like the wrong thing to do here. Neither Windows nor POSIX appear to encourage quoted PATH items.
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Maximum length of the textual representation of an IPv6 address?
...1 + 15 = 45
Note, this is an input/display convention - it's still a 128 bit address and for storage it would probably be best to standardise on the raw colon separated format, i.e. [0000:0000:0000:0000:0000:ffff:c0a8:64e4] for the address above.
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How do I initialize a byte array in Java?
...store these values, instead of byte arrays:
UUID
public UUID(long mostSigBits,
long leastSigBits)
Constructs a new UUID using the specified data. mostSigBits is used for the most significant 64 bits of the UUID and leastSigBits becomes the least significant 64 bits of the UUID.
...
Crop MP3 to first 30 seconds
....
I've used it before in a C# service that simply wrapped the mp3splt.exe win32 process. I assume something similar could be done in your Linux/PHP scenario.
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jumpserver-华为云免费堡垒机解决方案 - 更多技术 - 清泛网 - 专注C/C++及内核技术
jumpserver-华为云免费堡垒机解决方案一、环境CentOS 6.x x86_64 minivi etc hostsvi etc sysconfig networkservice iptables stopchkconfig iptables off关闭SELinu...一、环境
CentOS 6.x x86_64 mini
vi /etc/hosts
vi /etc/sysconfig/network
service iptables stop
chkco...
How do I run a Python program in the Command Prompt in Windows 7?
...trying to figure out how to run Python programs with the Command Prompt on Windows 7. (I should have figured this out by now...)
...
embedding image in html email
... you don't have a base64-data string, create one easily at:
http://www.motobit.com/util/base64-decoder-encoder.asp from a image file.
Email source code looks something like this, but i really cant tell you what that boundary thing is for:
To: email@email.de
Subject: ...
Content-Type: multipart/...
Where can I get a list of Ansible pre-defined variables?
... "ansible_userspace_architecture": "i386",
"ansible_userspace_bits": "32",
"ansible_virtualization_role": "guest",
"ansible_virtualization_type": "virtualbox"
},
"changed": false
}
The current documentation now has a complete chapter listing all Variables an...
Ruby max integer
...ig they can be.
If you are looking for the machine's size, i.e. 64- or 32-bit, I found this trick at ruby-forum.com:
machine_bytes = ['foo'].pack('p').size
machine_bits = machine_bytes * 8
machine_max_signed = 2**(machine_bits-1) - 1
machine_max_unsigned = 2**machine_bits - 1
If you are lookin...