For me, these warnings are continuing to arise almost daily. See two recent
examples below. In both cases, the code previously had always worked without
complaint.
----- Example from yesterday's class ----
''' How old-style formatting works with positional placeholders
print('The answer is %d today, but was %d yesterday' % (new, old))
\--------------------o
\------------------------------------o
'''
SyntaxWarning: invalid escape sequence \-
----- Example from today's class ----
# Cut and pasted from:
# https://en.wikipedia.org/wiki/VCard#vCard_2.1
vcard = '''
BEGIN:VCARD
VERSION:2.1
N:Gump;Forrest;;Mr.
FN:Forrest Gump
ORG:Bubba Gump Shrimp Co.
TITLE:Shrimp Man
PHOTO;GIF:http://www.example.com/dir_photos/my_photo.gif
TEL;WORK;VOICE:(111) 555-1212
TEL;HOME;VOICE:(404) 555-1212
ADR;WORK;PREF:;;100 Waters Edge;Baytown;LA;30314;United States of America
LABEL;WORK;PREF;ENCODING=QUOTED-PRINTABLE;CHARSET=UTF-8:100 Waters Edge=0D=
=0ABaytown\, LA 30314=0D=0AUnited States of America
ADR;HOME:;;42 Plantation St.;Baytown;LA;30314;United States of America
LABEL;HOME;ENCODING=QUOTED-PRINTABLE;CHARSET=UTF-8:42 Plantation St.=0D=0A=
Baytown, LA 30314=0D=0AUnited States of America
EMAIL:forrestg...@example.com
REV:20080424T195243Z
END:VCARD
'''
SyntaxWarning: invalid escape sequence \,
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