import sys

%%script python
import sys
print 'hello from Python %s' % sys.version

%%script python3
import sys
print('hello from Python: %s' % sys.version)

%%ruby
puts "Hello from Ruby #{RUBY_VERSION}"

%%bash
echo "hello from $BASH"

%%bash
echo "hi, stdout"
echo "hello, stderr" >&2


%%bash --out output --err error
echo "hi, stdout"
echo "hello, stderr" >&2

print(error)
print(output)

%%ruby --bg --out ruby_lines
for n in 1...10
    sleep 1
    puts "line #{n}"
    STDOUT.flush
end

ruby_lines

print(ruby_lines.read())

%%script python -Qnew
print 1/3

%%script --bg --out bashout bash -c "while read line; do echo $line; sleep 1; done"
line 1
line 2
line 3
line 4
line 5


import time
tic = time.time()
line = True
while True:
    line = bashout.readline()
    if not line:
        break
    sys.stdout.write("%.1fs: %s" %(time.time()-tic, line))
    sys.stdout.flush()