[ANNOUNCEMENT] Updated: units 2.14-1
Brian Inglis
Brian.Inglis@SystematicSw.ab.ca
Mon May 22 10:50:00 GMT 2017
On 2017-04-27 13:20, Brian Inglis wrote:
> * units-2.14-1
>
> The Units program converts quantities expressed in various scales to
> their equivalents in other scales. The units program can handle
> multiplicative scale changes as well as nonlinear conversions such as
> Fahrenheit to Celsius or wire gauge. Units comes with an annotated,
> extendable database defining over two thousand units.
>
> This is an update to the latest upstream release, which now supports
> longer input expressions (e.g. a sum of more than 100 units), control
> characters treated as white space to avoid producing errors about
> invalid UTF-8, and includes 2980 units, 109 prefixes, and 96 nonlinear
> units.
Currency exchange rates are updated on every run of setup by a permanent
postinstall script
/etc/postinstall/zp_units_cur.sh
running
/usr/bin/units_cur
to access
https://rss.timegenie.com
which uses HSTS to enforce https access, and whose security certificate
has expired, so runs will fail with message:
Error connecting to currency server. <urlopen error [SSL:
CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:749)>
If this causes you problems, please temporarily rename the current
update script /usr/bin/units_cur and replace by the attached, or replace
the line between the first try: and except ...: by the following lines:
[the first line is a comment, the remainder are indented two spaces]
#
http://stackoverflow.com/questions/36600583/python-3-urllib-ignore-ssl-certificate-verification
import ssl
ctx = ssl.create_default_context()
ctx.check_hostname = False
ctx.verify_mode = ssl.CERT_NONE
currencies =
ET.parse(urllib.request.urlopen('https://rss.timegenie.com/forex.xml',context=ctx)).findall('data')
to ignore the security certificate expiry until it is renewed (hopefully
by sometime Tuesday after the holiday): when the security certificate
has been renewed, I will follow up here to let everyone know.
--
Take care. Thanks, Brian Inglis, Calgary, Alberta, Canada
-------------- next part --------------
#!/usr/bin/python3
#
# Version 2
# 9 July 2013
#
# Modified to use xml format output from timegenie instead of text file
#
# Version 3
# 7 March 2014
#
# Added checks for unicode currency names
#
# Version 3.1
# 23 June 2014
#
# Added test for non-unicode strings to prevent a runtime warning
#
import sys
import urllib.request, urllib.parse, urllib.error
import os
import xml.etree.ElementTree as ET
import codecs
from datetime import datetime
from unidecode import unidecode
outstr = ''
outfile='/usr/share/units/currency.units'
if len(sys.argv)==2 and sys.argv[1] != '--help' and sys.argv[1] != '-h':
outfile = sys.argv[1]
elif len(sys.argv) != 1:
sys.stderr.write('\nUsage: {0} [filename]\n\n'.format(sys.argv[0]))
sys.stderr.write('Update currency information for \'units\' into the specified filename or if no\n')
sys.stderr.write('filename is given, the default: \'{0}\'.\n'.format(outfile))
sys.exit(1)
try:
# http://stackoverflow.com/questions/36600583/python-3-urllib-ignore-ssl-certificate-verification
import ssl
ctx = ssl.create_default_context()
ctx.check_hostname = False
ctx.verify_mode = ssl.CERT_NONE
currencies = ET.parse(urllib.request.urlopen('https://rss.timegenie.com/forex.xml',context=ctx)).findall('data')
except IOError as exc:
sys.stderr.write('Error connecting to currency server. {0}\n'.format(exc))
sys.exit(1)
# print codes here
codes = [x.find('code').text for x in currencies]
names = [x.find('description').text for x in currencies]
values = [x.find('rate').text for x in currencies]
# Sometimes currency rates are missing from the xml file
# Delete such currencies
while True:
try:
none = values.index(None)
sys.stderr.write('no rate for "%s" (%s)\n' % (names[none], codes[none]))
del codes[none]
del names[none]
del values[none]
except ValueError:
break
# Precious metals are showing up with weird prices (per gram?)
# Delete them
metalcodes = ['XAG','XAU','XPD','XPT']
for i in range(len(metalcodes)):
try:
badind = codes.index(metalcodes[i])
del codes[badind]
del names[badind]
del values[badind]
except ValueError:
break
names = [x.lower().replace(' ','') for x in names]
foundunicode=False
for i in range(len(names)):
if names[i] == 'anguilla(ecd)':
names[i] = 'eastcaribbeandollar'
if isinstance(names[i],str): # this test needed only for python2
ascii = unidecode(names[i])
else:
ascii = names[i]
if names[i] != ascii:
if not foundunicode:
foundunicode = True
outstr += '# Unicode Currency Names\n\n!utf8\n'
outstr += names[i] + ' ' *(23-len(names[i])) + ascii + '\n'
names[i] = ascii
if foundunicode:
outstr += '!endutf8\n\n'
outstr += '# ISO Currency Codes\n\n'
outstr += '\n'.join([x + ' '*20 + y for x,y in zip(codes,names)])
usd = codes.index('USD')
euro = codes.index('EUR')
usdval = values[usd]
values = ['1|' + x +' euro' for x in values]
values[euro] = usdval + ' US$'
del names[usd]
del values[usd]
# print rates here
now = datetime.now()
outstr += '\n\n# Currency exchange rates from Time Genie (www.timegenie.com)\n'
outstr += '\n!message Currency exchange rates from www.timegenie.com on '+now.strftime('%Y-%m-%d')+'\n\n'
maxlen = max(list(map(len,names))) + 2
outstr += '\n'.join([x.ljust(maxlen) + y for x,y in zip(names, values)])
# precious metals prices
outstr += '\n\n# Precious metals prices from http://services.packetizer.com/spotprices/\n\n'
try:
spotprices = ET.parse(urllib.request.urlopen('http://services.packetizer.com/spotprices/?f=xml'))
except IOError as exc:
sys.stderr.write('Error connecting to spotprices server. {0}\n'.format(exc))
sys.exit(1)
metals = ['gold','platinum','silver']
for metal in metals:
outstr += '{0} {1} US$/troyounce\n'.format((metal+'price').ljust(15), spotprices.find(metal).text)
try:
if outfile == '-':
info = codecs.lookup('utf8')
outfile = codecs.StreamReaderWriter(sys.stdout, info.streamreader, info.streamwriter)
else:
outfile = codecs.open(outfile,'w','utf8')
except IOError as exc:
sys.stderr.write('Unable to write to output file. {0}\n'.format(exc))
sys.exit(1)
outfile.write(outstr.replace('\n',os.linesep))
# In python3, open(outfile,mode='w',encoding='utf8') should work
# and then the explicit newline handling won't be needed
-------------- next part --------------
--
Problem reports: http://cygwin.com/problems.html
FAQ: http://cygwin.com/faq/
Documentation: http://cygwin.com/docs.html
Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
More information about the Cygwin
mailing list