Module: RbbtPython
- Extended by:
- PyCall::Import
- Defined in:
- lib/rbbt/util/python.rb,
lib/rbbt/util/python/util.rb
Defined Under Namespace
Classes: Binding, RbbtPythonException
Class Method Summary
collapse
-
.add_path(path) ⇒ Object
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.add_paths(paths) ⇒ Object
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.binding_run(binding = nil, *args, &block) ⇒ Object
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.call_method(module_name, method_name, *args) ⇒ Object
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.class_new_obj(module_name, class_name, args = {}) ⇒ Object
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.collect(iterator, options = {}, &block) ⇒ Object
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.df2tsv(tuple, options = {}) ⇒ Object
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.exec(script) ⇒ Object
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.get_class(module_name, class_name) ⇒ Object
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.import_method(module_name, method_name, as = nil) ⇒ Object
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.init_rbbt ⇒ Object
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.iterate(iterator, options = {}, &block) ⇒ Object
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.iterate_index(elem, options = {}) ⇒ Object
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.list2ruby(list) ⇒ Object
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.new_binding ⇒ Object
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.numpy2ruby(numpy) ⇒ Object
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.obj2hash(obj) ⇒ Object
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.py2ruby_a(array) ⇒ Object
(also: to_a)
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.run(mod = nil, imports = nil, &block) ⇒ Object
-
.run_log(mod = nil, imports = nil, severity = 0, severity_err = nil, &block) ⇒ Object
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.run_log_stderr(mod = nil, imports = nil, severity = 0, &block) ⇒ Object
-
.script(text, options = {}) ⇒ Object
-
.tsv2df(tsv) ⇒ Object
Class Method Details
.add_path(path) ⇒ Object
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# File 'lib/rbbt/util/python.rb', line 24
def self.add_path(path)
begin
self.run 'sys' do
sys.path.append path
end
rescue
raise RbbtPythonException,
"Could not add path #{Misc.fingerprint path} to python sys: " + $!.message
end
end
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.add_paths(paths) ⇒ Object
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# File 'lib/rbbt/util/python.rb', line 35
def self.add_paths(paths)
self.run 'sys' do
paths.each do |path|
sys.path.append path
end
end
end
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.binding_run(binding = nil, *args, &block) ⇒ Object
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# File 'lib/rbbt/util/python.rb', line 207
def self.binding_run(binding = nil, *args, &block)
binding = new_binding
binding.instance_exec *args, &block
end
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.call_method(module_name, method_name, *args) ⇒ Object
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# File 'lib/rbbt/util/python.rb', line 57
def self.call_method(module_name, method_name, *args)
RbbtPython.import_method(module_name, method_name).call(*args)
end
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.class_new_obj(module_name, class_name, args = {}) ⇒ Object
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# File 'lib/rbbt/util/python.rb', line 67
def self.class_new_obj(module_name, class_name, args={})
RbbtPython.get_class(module_name, class_name).new(**args)
end
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.collect(iterator, options = {}, &block) ⇒ Object
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# File 'lib/rbbt/util/python.rb', line 146
def self.collect(iterator, options = {}, &block)
acc = []
self.iterate(iterator, options) do |elem|
res = block.call elem
acc << res
end
acc
end
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.df2tsv(tuple, options = {}) ⇒ Object
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# File 'lib/rbbt/util/python/util.rb', line 20
def self.df2tsv(tuple, options = {})
options = Misc.add_defaults options, :type => :list
IndiferentHash.setup options
tsv = TSV.setup({}, options)
tsv.key_field = options[:key_field] || tuple.columns.name
tsv.fields = py2ruby_a(tuple.columns.values)
keys = tuple.index.values
PyCall.len(tuple.index).times do |i|
k = keys[i]
tsv[k] = py2ruby_a(tuple.values[i])
end
tsv
end
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.exec(script) ⇒ Object
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# File 'lib/rbbt/util/python.rb', line 71
def self.exec(script)
PyCall.exec(script)
end
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.get_class(module_name, class_name) ⇒ Object
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# File 'lib/rbbt/util/python.rb', line 61
def self.get_class(module_name, class_name)
save_module_name = module_name.to_s.gsub(".", "_")
RbbtPython.pyimport(module_name, as: save_module_name)
RbbtPython.send(save_module_name).send(class_name)
end
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.import_method(module_name, method_name, as = nil) ⇒ Object
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# File 'lib/rbbt/util/python.rb', line 52
def self.import_method(module_name, method_name, as = nil)
RbbtPython.pyfrom module_name, import: method_name
RbbtPython.method(method_name)
end
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.init_rbbt ⇒ Object
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# File 'lib/rbbt/util/python.rb', line 43
def self.init_rbbt
if ! defined?(@@__init_rbbt_python) || ! @@__init_rbbt_python
Log.debug "Loading python 'rbbt' module into pycall RbbtPython module"
RbbtPython.add_paths(Rbbt.python.find_all)
RbbtPython.pyimport("rbbt")
@@__init_rbbt_python = true
end
end
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.iterate(iterator, options = {}, &block) ⇒ Object
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# File 'lib/rbbt/util/python.rb', line 107
def self.iterate(iterator, options = {}, &block)
if ! iterator.respond_to?(:__next__)
if iterator.respond_to?(:__iter__)
iterator = iterator.__iter__
else
return iterate_index(iterator, options, &block)
end
end
bar = options[:bar]
case bar
when TrueClass
bar = Log::ProgressBar.new nil, :desc => "RbbtPython iterate"
when String
bar = Log::ProgressBar.new nil, :desc => bar
end
while true
begin
elem = iterator.__next__
yield elem
bar.tick if bar
rescue PyCall::PyError
if $!.type.to_s == "<class 'StopIteration'>"
break
else
raise $!
end
rescue
bar.error if bar
raise $!
end
end
Log::ProgressBar.remove_bar bar if bar
nil
end
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.iterate_index(elem, options = {}) ⇒ Object
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# File 'lib/rbbt/util/python.rb', line 75
def self.iterate_index(elem, options = {})
iii :interate_index
bar = options[:bar]
len = PyCall.len(elem)
case bar
when TrueClass
bar = Log::ProgressBar.new nil, :desc => "RbbtPython iterate"
when String
bar = Log::ProgressBar.new nil, :desc => bar
end
len.times do |i|
begin
yield elem[i]
bar.tick if bar
rescue PyCall::PyError
if $!.type.to_s == "<class 'StopIteration'>"
break
else
raise $!
end
rescue
bar.error if bar
raise $!
end
end
Log::ProgressBar.remove_bar bar if bar
nil
end
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.list2ruby(list) ⇒ Object
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# File 'lib/rbbt/util/python/util.rb', line 34
def self.list2ruby(list)
return list unless PyCall::List === list
list.collect do |e|
list2ruby(e)
end
end
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.new_binding ⇒ Object
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# File 'lib/rbbt/util/python.rb', line 203
def self.new_binding
Binding.new
end
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.numpy2ruby(numpy) ⇒ Object
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# File 'lib/rbbt/util/python/util.rb', line 41
def self.numpy2ruby(numpy)
list2ruby(numpy.tolist)
end
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.obj2hash(obj) ⇒ Object
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# File 'lib/rbbt/util/python/util.rb', line 45
def self.obj2hash(obj)
hash = {}
RbbtPython.iterate obj.keys do |k|
hash[k] = obj[k]
end
hash
end
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.py2ruby_a(array) ⇒ Object
Also known as:
to_a
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# File 'lib/rbbt/util/python/util.rb', line 2
def self.py2ruby_a(array)
PyCall::List.(array).to_a
end
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.run(mod = nil, imports = nil, &block) ⇒ Object
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# File 'lib/rbbt/util/python.rb', line 155
def self.run(mod = nil, imports = nil, &block)
if mod
if Hash === imports
pyimport mod, **imports
elsif imports.nil?
pyimport mod
else
pyfrom mod, :import => imports
end
end
module_eval(&block)
end
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.run_log(mod = nil, imports = nil, severity = 0, severity_err = nil, &block) ⇒ Object
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# File 'lib/rbbt/util/python.rb', line 169
def self.run_log(mod = nil, imports = nil, severity = 0, severity_err = nil, &block)
if mod
if imports == "*" || imports == ["*"]
pyfrom mod
elsif Array === imports
pyfrom mod, :import => imports
elsif Hash === imports
pyimport mod, imports
else
pyimport mod
end
end
Log.trap_std("Python STDOUT", "Python STDERR", severity, severity_err) do
module_eval(&block)
end
end
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.run_log_stderr(mod = nil, imports = nil, severity = 0, &block) ⇒ Object
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# File 'lib/rbbt/util/python.rb', line 187
def self.run_log_stderr(mod = nil, imports = nil, severity = 0, &block)
if mod
if Array === imports
pyfrom mod, :import => imports
elsif Hash === imports
pyimport mod, imports
else
pyimport mod
end
end
Log.trap_stderr("Python STDERR", severity) do
module_eval(&block)
end
end
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.script(text, options = {}) ⇒ Object
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# File 'lib/rbbt/util/python.rb', line 18
def self.script(text, options = {})
Log.debug "Running python script:\n#{text.dup}"
text = StringIO.new text unless IO === text
CMD.cmd_log(:python, options.merge(:in => text))
end
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.tsv2df(tsv) ⇒ Object
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# File 'lib/rbbt/util/python/util.rb', line 11
def self.tsv2df(tsv)
df = nil
RbbtPython.run 'pandas' do
df = pandas.DataFrame.new(tsv.values, columns: tsv.fields, index: tsv.keys)
df.columns.name = tsv.key_field
end
df
end
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