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Benjamin Bandt-Horn

4. More Control Flow Tools - Python v2.7.6 documentation - 0 views

docs.python.org/...controlflow.html

python flow control documentation kwargs args

shared by Benjamin Bandt-Horn on 20 Dec 13 - No Cached
  • *name must occur before **name.
  • keys = sorted(keywords.keys()) for kw in keys: print kw, ":", keywords[kw]
  • Note that the list of keyword argument names is created by sorting the result of the keywords dictionary’s keys() method before printing its contents; if this is not done, the order in which the arguments are printed is undefined
  • ...11 more annotations...
  • They are syntactically restricted to a single expression
  • Like nested function definitions, lambda functions can reference variables from the containing scope
  • Coding Style
  • CamelCase for classes
  • lower_case_with_underscores for functions and methods
  • Always use self as the name for the first method argument
  • comments
  • docstrings
  • separate
  • 79 characters
  • 4-space indentation, and no tabs
  • Benjamin Bandt-Horn on 20 Dec 13
     
    keys = sorted(keywords.keys()) for kw in keys: print kw, ":", keywords[kw]
Benjamin Bandt-Horn

Mac OSX : How to burn an ISO image to a USB key - The Endless Geek - 0 views

endlessgeek.com/...burn-an-iso-image-to-a-usb-key

mac osx how to burn iso image usb key

shared by Benjamin Bandt-Horn on 09 Jan 16 - No Cached
  • Benjamin Bandt-Horn on 09 Jan 16
     
    If you have tried to create a bootable USB key from an iso image in Mac OSX using Disk Utility then you have probably encountered the frustrating and almost Windows-like cryptic error message "Could not validate source - Invalid argument" error. Looking in the system log via the Console app I suspect this is because internally DiskUtil tries to run /usr/sbin/asr to verify the image, which fails.   1 2 3 $ asr imagescan --source ubuntu-rescue-remix-12-04.iso only UDIF and NDIF images can be scanned. asr: image scan failed - Invalid argument. UDIF and NDIF are image formats used by Apple, and Disk Utility is pretty hopeless with anything that falls outside of these standards. The iso standard is short for ISO9660 and is a standard that defines the format of an image intended for burning to CD. Even after using hdutil to convert the image to UDRO (a UDIF Read-Only image) Disk Utility will still stubbornly refuse to help. Disk Destroyer Duplicator to the rescue Being Unix based, OSX has the command line dd utility available. Short for Disk Duplicator, dd is a block level reader/writer that makes raw copies from one file to another. But you want to copy the image to a device, right? That's fine, because everything in the world of Unix/Linux is a file - even devices. Informally referred to as Disk Destroyer, should you tell dd to output to the wrong device then your day is definitely going to be spoiled, so to avoid any mishaps we will make sure we know which devices on your system is your USB stick. You can determine this from the command line:
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