#!/usr/bin/env python
# tgetwx.py - Get And Report Weather Conditions
# Copyright (c) 2014 TundraWare Inc., Des Plaines, IL 60018 USA
# All Rights Reserved. For Terms Of Use See: tgetwx-license.txt
# For Program Updates See: http://www.tundraware.com/Software/tgetwx
# $Id: tgetwx.py,v 1.104 2014/03/04 01:12:48 tundra Exp $
# Embed the source control ID string for use by program
CVSID='$Id: tgetwx.py,v 1.104 2014/03/04 01:12:48 tundra Exp $'
#####
# Program Information
#####
PROGNAME = "tgetwx.py"
PROGENV = "tgetwx".upper()
VERSION = CVSID.split()[2]
PROGVER = PROGNAME + " " + VERSION + " - Get And Report Weather Conditions"
#####
# Copyright Information
#####
COPYRIGHT = "Copyright (c) 2014 TundraWare Inc., Des Plaines, IL 60018 USA"
#####
# List Of All Legal Options - Update This When You Add More!!!!
#####
OPTIONSLIST = 'Hhv'
#----------------------------------------------------------#
# Variables User Might Change #
#----------------------------------------------------------#
#------------------- Nothing Below Here Should Need Changing ------------------#
#----------------------------------------------------------#
# Imports #
#----------------------------------------------------------#
import getopt
import json
import os
import sys
import time
import urllib2
#----------------------------------------------------------#
# Aliases & Redefinitions #
#----------------------------------------------------------#
#----------------------------------------------------------#
# Constants & Literals #
#----------------------------------------------------------#
#####
# Constants
#####
KELVIN = 273.15
#####
# Literals
#####
WEATHERURL = 'http://api.openweathermap.org/data/2.5/weather?q=%s'
#----------------------------------------------------------#
# Prompts, & Application Strings #
#----------------------------------------------------------#
#####
# Error Messages
#####
eBADARG = "Invalid command line: %s!"
eBADLOCATION = "Location, %s, Not Found!"
eERROR = "ERROR"
eLOOKUPFAIL = "Weather Lookup For, %s, Failed!"
#####
# Usage Prompts
#####
# Make the options list more human readable
optionslist = OPTIONSLIST.replace(':', ' arg -').strip()
if optionslist[-1] == '-':
optionslist = optionslist[:-1].strip()
uTable = [PROGVER,
"usage: " + PROGNAME + " [%s]" % optionslist,
" where,",
" -H Generate HTML (default: Plain Text)",
" -h Print this help information",
" -v Print detailed version information",
]
#----------------------------------------------------------#
# Global Variables & Data Structures #
#----------------------------------------------------------#
HTMLOUT = False
#--------------------------- Code Begins Here ---------------------------------#
#----------------------------------------------------------#
# Object Base Class Definitions #
#----------------------------------------------------------#
#----------------------------------------------------------#
# General Utility Functions #
#----------------------------------------------------------#
def ColumnPad(list, padchar=" ", padwidth=20):
retval = ""
for l in list:
l = str(l)
retval += l + ((padwidth - len(l)) * padchar)
return retval.strip()
# End of 'ColumnPad()'
#####
# Print An Error Message
#####
def ErrorMsg(emsg):
PrintStderr(PROGNAME + " " + eERROR + ": " + emsg)
# End of 'ErrorMsg()'
#####
# Print To stderr
#####
def PrintStderr(msg, trailing="\n"):
sys.stderr.write(msg + trailing)
# End of 'PrintStderr()'
#####
# Print To stdout
#####
def PrintStdout(msg, trailing="\n"):
sys.stdout.write(msg + trailing)
# End of 'PrintStdout'
#####
# Print Usage Information
#####
def Usage():
for line in uTable:
PrintStdout(line)
# End of 'Usage()'
#----------------------------------------------------------#
# Program-Specific Functions #
#----------------------------------------------------------#
def ReportWeather(location, EmitHTML):
results = []
try:
f = urllib2.urlopen(WEATHERURL % location)
lookup = f.read()
except:
results.append(eLOOKUPFAIL % s)
finally:
f.close()
data = json.loads(lookup)
# Handle cities not found
if "message" in data:
results.append(data["message"])
# Lookup was successful, populate data
else:
# Order is City Name, Country, Date, Temp, Humidity, Pressure, Wind Speed, Wind Direction, Cloud Cover, Description
results.append(data["name"])
results.append(data["sys"]["country"])
results.append(time.strftime("%D %H:%M", time.localtime(int(data["dt"]))))
results.append("%.0f" % (((data["main"]["temp"] - KELVIN) * 9/5) + 32) + "F" )
results.append("%.0f" % (data["main"]["humidity"])+ "%")
results.append("%.2f" % (data["main"]["pressure"] * 0.0295299830714) + "in")
results.append("%.1f" % (data["wind"]["speed"]) + "mph")
results.append("%.0f" % (data["wind"]["deg"]) + "deg")
results.append("%.0f" % (data["clouds"]["all"]) + "%")
results.append(data["weather"][0]["description"])
if EmitHTML:
print "This is where HTML will come out!"
else:
print results
# End of 'ReportWeather()'
#----------------------------------------------------------#
# Program Entry Point #
#----------------------------------------------------------#
# Command line processing - Process any options set in the
# environment first, and then those given on the command line
OPTIONS = sys.argv[1:]
envopt = os.getenv(PROGENV)
if envopt:
OPTIONS = envopt.split() + OPTIONS
try:
opts, args = getopt.getopt(OPTIONS, OPTIONSLIST)
except getopt.GetoptError, (errmsg, badarg):
ErrorMsg(eBADARG % errmsg)
sys.exit(1)
for opt, val in opts:
if opt == "-H":
HTMLOUT = True
if opt == "-h":
Usage()
sys.exit(0)
if opt == "-v":
PrintStdout(CVSID)
sys.exit(0)
# Command line arguments are presumed to be locations to lookup
for location in args:
ReportWeather(location, HTMLOUT)
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