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How to modify a text file?
...ay to insert into the middle of a file without re-writing it. As previous posters have indicated, you can append to a file or overwrite part of it using seek but if you want to add stuff at the beginning or the middle, you'll have to rewrite it.
This is an operating system thing, not a Python thing...
How can I convert a stack trace to a string?
... trace to String. This class is available in Apache commons-lang which is most common dependent library with many popular open sources
org.apache.commons.lang.exception.ExceptionUtils.getStackTrace(Throwable)
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Copying text outside of Vim with set mouse=a enabled
...ou do that (you may also want to :set paste to avoid unexpected effects).
OS X (mac):
hold alt/option while selecting (source)
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Python strftime - date without leading 0?
...he leading zero.
For example %Y/%-m/%-d.
This only works on Unix (Linux, OS X), not Windows (including Cygwin). On Windows, you would use #, e.g. %Y/%#m/%#d.
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App Inventor 2 UrsAI2UDP 拓展 - UDP广播通信协议 · App Inventor 2 中文网
...换为文本：
数字转换成文字，收件人收到四位数字“1234”。
列表被传输为 JSON 格式。接收方收到字符串 [1234, "Ulli"] 。
但是，某些接收方需要某些字节序列，例如字节 123（十六进制 7B）而不是字符串“123”。如果打开二...
Get login username in java
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This code goes against Java's philosophy of write once, run anywhere (introduction of OS specific code), and secondly, it creates a dependency on Sun's implementation of Java.
– Jin Kim
May 19 '09 at 16:28
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How to open multiple pull requests on GitHub
...ing issue (something you can't do from the web UI):
$ git pull-request -i 123
[ attached pull request to issue #123 ]
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How to import classes defined in __init__.py
...ject
Helper in lib.foo.someobject
# ./import_submodule.py
import fnmatch, os
from lib.settings import Values
from lib import Helper
print
for root, dirs, files in os.walk('.'):
for f in fnmatch.filter(files, '*.py'):
print "# %s/%s" % (os.path.basename(root), f)
print open(os.p...
Case insensitive comparison of strings in shell script
... answered Nov 13 '09 at 12:02
ghostdog74ghostdog74
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When and why will a compiler initialise memory to 0xCD, 0xDD, etc. on malloc/free/new/delete?
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A quick summary of what Microsoft's compilers use for various bits of unowned/uninitialized memory when compiled for debug mode (support may vary by compiler version):
Value Name Description
------ -------- --------------------...