int=Push an integer or bool.
binint=Push a four-byte signed integer.
binint1=Push a one-byte unsigned integer.
binint2=Push a two-byte unsigned integer.
long=Push a long integer.
long1=Long integer using one-byte length.
long4=Long integer using found-byte length.
string=Push a Python string object.
binstring=Push a Python string object.
short_binstring=Push a Python string object.
binbytes=Push a Python bytes object.
short_binbytes=Push a Python bytes object.
binbytes8=Push a Python bytes object.
bytearray8=Push a Python bytearray object.
next_buffer=Push an out-of-band buffer object.
readonly_buffer=Make an out-of-band buffer object read-only.
none=Push None on the stack.
newtrue=Push True onto the stack.
newfalse=Push False onto the stack.
unicode=Push a Python Unicode string object.
short_binunicode=Push a Python Unicode string object.
binunicode=Push a Python Unicode string object.
binunicode8=Push a Python Unicode string object.
float=Newline-terminated decimal float literal.
binfloat=Float stored in binary form, with 8 bytes of data.
empty_list=Push an empty list.
append=Append an object to a list.
appends=Extend a list by a slice of stack objects.
list=Build a list out of the topmost stack slice, after markobject.
empty_tuple=Push an empty tuple.
tuple=Build a tuple out of the topmost stack slice, after markobject.
tuple1=Build a one-tuple out of the topmost item on the stack.
tuple2=Build a two-tuple out of the top two items on the stack.
tuple3=Build a three-tuple out of the top three items on the stack.
empty_dict=Push an empty dict.
dict=Build a dict out of the topmost stack slice, after markobject.
setitem=Add a key+value pair to an existing dict.
setitems=Add an arbitrary number of key+value pairs to an existing dict.
empty_set=Push an empty set.
additems=Add an arbitrary number of items to an existing set.
frozenset=Build a frozenset out of the topmost slice, after markobject.
pop=Discard the top stack item, shrinking the stack by one item.
dup=Push the top stack item onto the stack again, duplicating it.
mark=Push markobject onto the stack.
pop_mark=Pop all the stack objects at and above the topmost markobject.
get=Read an object from the memo and push it on the stack.
binget=Read an object from the memo and push it on the stack.
long_binget=Read an object from the memo and push it on the stack.
put=Store the stack top into the memo.  The stack is not popped.
binput=Store the stack top into the memo.  The stack is not popped.
long_binput=Store the stack top into the memo.  The stack is not popped.
memoize=Store the stack top into the memo.  The stack is not popped.
ext1=Extension code.
ext2=Extension code.
ext4=Extension code.
global=Push a global object (module.attr) on the stack.
stack_global=Push a global object (module.attr) on the stack.
reduce=Push an object built from a callable and an argument tuple.
build=Finish building an object, via __setstate__ or dict update.
inst=Build a class instance.
obj=Build a class instance.
newobj=Build an object instance.
newobj_ex=Build an object instance.
proto=Protocol version indicator.
stop=Stop the unpickling machine.
frame=Indicate the beginning of a new frame.
persid=Push an object identified by a persistent ID.
binpersid=Push an object identified by a persistent ID.