def show(self, index=None):
"""Show a single block on screen"""
index = self._get_index(index)
if index is None:
return
print marquee('<%s> block # %s (%s remaining)' %
(self.fname, index, self.nblocks - index - 1))
print self.src_blocks_colored[index],
sys.stdout.flush()
def __call__(self, index=None):
"""run a block of the demo.
If index is given, it should be an integer >=1 and <= nblocks. This
means that the calling convention is one off from typical Python
lists. The reason for the inconsistency is that the demo always
prints 'Block n/N, and N is the total, so it would be very odd to use
zero-indexing here."""
index = self._get_index(index)
if index is None:
return
try:
marquee = self.marquee
next_block = self.src_blocks[index]
self.block_index += 1
if self._silent[index]:
print >> Term.cout, marquee(
'Executing silent block # %s (%s remaining)' %
(index, self.nblocks - index - 1))
else:
self.pre_cmd()
self.show(index)
if self.auto_all or self._auto[index]:
print >> Term.cout, marquee('output:')
else:
print >> Term.cout, marquee(
'Press <q> to quit, <Enter> to execute...'),
ans = raw_input().strip()
if ans:
print >> Term.cout, marquee('Block NOT executed')
return
try:
save_argv = sys.argv
sys.argv = self.sys_argv
self.runlines(next_block)
self.post_cmd()
finally:
sys.argv = save_argv
except:
self.ip_showtb(filename=self.fname)
else:
self.ip_ns.update(self.user_ns)
if self.block_index == self.nblocks:
mq1 = self.marquee('END OF DEMO')
if mq1:
# avoid spurious print >>Term.cout,s if empty marquees are used
print >> Term.cout
print >> Term.cout, mq1
print >> Term.cout, self.marquee(
'Use <demo_name>.reset() if you want to rerun it.')
self.finished = True
def show(self, index=None):
"""Show a single block on screen"""
if index is None:
if self.finished:
print 'Demo finished. Use reset() if you want to rerun it.'
return
index = self.block_index
else:
self._validate_index(index)
print marquee('<%s> block # %s (%s remaining)' %
(self.fname, index, self.nblocks - index - 1))
print self.src_blocks_colored[index],
def __call__(self, index=None):
"""run a block of the demo.
If index is given, it should be an integer >=1 and <= nblocks. This
means that the calling convention is one off from typical Python
lists. The reason for the inconsistency is that the demo always
prints 'Block n/N, and N is the total, so it would be very odd to use
zero-indexing here."""
index = self._get_index(index)
if index is None:
return
try:
marquee = self.marquee
next_block = self.src_blocks[index]
self.block_index += 1
if self._silent[index]:
print >>Term.cout, marquee(
"Executing silent block # %s (%s remaining)" % (index, self.nblocks - index - 1)
)
else:
self.pre_cmd()
self.show(index)
if self.auto_all or self._auto[index]:
print >>Term.cout, marquee("output:")
else:
print >>Term.cout, marquee("Press <q> to quit, <Enter> to execute..."),
ans = raw_input().strip()
if ans:
print >>Term.cout, marquee("Block NOT executed")
return
try:
save_argv = sys.argv
sys.argv = self.sys_argv
self.runlines(next_block)
self.post_cmd()
finally:
sys.argv = save_argv
except:
self.ip_showtb(filename=self.fname)
else:
self.ip_ns.update(self.user_ns)
if self.block_index == self.nblocks:
mq1 = self.marquee("END OF DEMO")
if mq1:
# avoid spurious print >>Term.cout,s if empty marquees are used
print >>Term.cout
print >>Term.cout, mq1
print >>Term.cout, self.marquee("Use <demo_name>.reset() if you want to rerun it.")
self.finished = True
def show_all(self):
"""Show entire demo on screen, block by block"""
fname = self.fname
nblocks = self.nblocks
silent = self._silent
for index, block in enumerate(self.src_blocks_colored):
if silent[index]:
print marquee('<%s> SILENT block # %s (%s remaining)' %
(fname, index, nblocks - index - 1))
else:
print marquee('<%s> block # %s (%s remaining)' %
(fname, index, nblocks - index - 1))
print block,
def show_all(self):
"""Show entire demo on screen, block by block"""
fname = self.fname
nblocks = self.nblocks
silent = self._silent
marquee = self.marquee
for index,block in enumerate(self.src_blocks_colored):
if silent[index]:
print marquee('<%s> SILENT block # %s (%s remaining)' %
(fname,index,nblocks-index-1))
else:
print marquee('<%s> block # %s (%s remaining)' %
(fname,index,nblocks-index-1))
print block,
sys.stdout.flush()
def show_all(self):
"""Show entire demo on screen, block by block"""
fname = self.title
title = self.title
nblocks = self.nblocks
silent = self._silent
marquee = self.marquee
for index, block in enumerate(self.src_blocks_colored):
if silent[index]:
print >> Term.cout, marquee(
'<%s> SILENT block # %s (%s remaining)' %
(title, index, nblocks - index - 1))
else:
print >> Term.cout, marquee(
'<%s> block # %s (%s remaining)' %
(title, index, nblocks - index - 1))
print >> Term.cout, block,
sys.stdout.flush()
def marquee(self, txt="", width=78, mark="*"):
"""Return the input string centered in a 'marquee'."""
return marquee(txt, width, mark)
def marquee(self, txt='', width=78, mark='*'):
"""Return the input string centered in a 'marquee'."""
return marquee(txt, width, mark)
def __call__(self, index=None):
"""run a block of the demo.
If index is given, it should be an integer >=1 and <= nblocks. This
means that the calling convention is one off from typical Python
lists. The reason for the inconsistency is that the demo always
prints 'Block n/N, and N is the total, so it would be very odd to use
zero-indexing here."""
if index is None and self.finished:
print 'Demo finished. Use reset() if you want to rerun it.'
return
if index is None:
index = self.block_index
self._validate_index(index)
try:
next_block = self.src_blocks[index]
self.block_index += 1
if self._silent[index]:
print marquee('Executing silent block # %s (%s remaining)' %
(index, self.nblocks - index - 1))
else:
self.show(index)
if self.auto_all or self._auto[index]:
print marquee('output')
else:
print marquee('Press <q> to quit, <Enter> to execute...'),
ans = raw_input().strip()
if ans:
print marquee('Block NOT executed')
return
try:
save_argv = sys.argv
sys.argv = self.sys_argv
exec next_block in self.user_ns
finally:
sys.argv = save_argv
except:
self.ip_showtb(filename=self.fname)
else:
self.ip_ns.update(self.user_ns)
if self.block_index == self.nblocks:
print
print marquee(' END OF DEMO ')
print marquee('Use reset() if you want to rerun it.')
self.finished = True
