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def left_join(phrases):
# Join strings and replace "right" to "left"
text = ','.join(phrases)
while text.find('right') != -1:
text = text.replace('right', 'left')
return text
if __name__ == '__main__': # pragma: no cover
# These "asserts" using only for self-checking and not necessary for
# auto-testing
assert left_join(("left", "right",
"left", "stop")) == "left,left,left,stop", "All to left"
assert left_join(("bright aright",
"ok")) == "bleft aleft,ok", "Bright Left"
assert left_join(("brightness wright",)) == "bleftness wleft", "One phrase"
assert left_join(("enough",
"jokes")) == "enough,jokes", "Nothing to replace"
KenMercusLai /
checkio
