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Various Python helper functions
# encoding: utf-8
""" Python General Helpers
Copyright (c) 2010 Kenneth Reitz. Creative Commons Attribution 3.0 License.
import urllib, re, time, sys
import paramiko
class Object(object):
"""Your attributes are belong to us."""
def __init__(self, **entries):
def __getitem__(self, key):
return getattr(self, key)
def iscollection(obj):
"""Tests if an object is a collection"""
col = getattr(obj, '__getitem__', False)
val = False if (not col) else True
if isstring(obj):
val = False
return val
def isstring(obj):
"""Tests if an object is a string"""
return True if type(obj).__name__ == 'str' else False
def print_args(function):
def wrapper(*args, **kwargs):
print 'Arguments:', args, kwargs
return function(*args, **kwargs)
return wrapper
def enc(str):
"""Encodes a string to ascii"""
return str.encode('ascii', 'ignore')
def dec(str):
"""Decodes a string to ascii"""
return str.decode('ascii', 'ignore')
def get_file(path):
"""Returns a file as a string"""
return open(path, 'r').read()
def get_file_lines(path):
"""Returns a file as a list of strings"""
return open(path, 'r').readlines()
def get_http(uri):
"""Fetches a file over http as a string"""
return urllib.urlopen(uri).read()
def get_http_lines(uri):
"""Fetches a file over http as a file object"""
return urllib.urlopen(uri).readlines()
def get_sftp(hostname, username, password, filename):
"""Fetches a file over sftp as a string
Note: Server must be in known_hosts.
client = paramiko.SSHClient()
print("Download of %s started" % filename)
client.connect(hostname=hostname, username=username, password=password)
file = client.open_sftp().open(filename).read()
print("Download of %s complete" % filename)
return file
def get_piped():
"""Returns piped input via stdin, else False"""
with sys.stdin as stdin:
return if not stdin.isatty() else None
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