class TestPython(object):
def __init__(self, ID=None):
self.Test = QProcess()
self.ID = ID
#a and b to test if i get a output or command error
self.a = True
self.Settings = QtCore.QSettings('Tyrant.cfg',
QtCore.QSettings.IniFormat)
def TestVersion(self):
print('Test python version')
self.Test.readyReadStandardError.connect(self.getOutput)
self.Test.readyReadStandardOutput.connect(self.getOutput)
if self.ID is not None:
self.Test.error.connect(self.Error)
#if i have a custom pythonpath, i'll use it here
Res = Resources()
Python = Res.getPref('Python')
#test if is a pythonpath, if not open a default
if len(Python) < 5:
Python = 'python'
self.Test.start(Python, ['-V'])
self.Test.waitForFinished()
self.Test.terminate()
if (self.a is False) & (self.ID is None):
#test a diferent command to run python 2.7
a = self.TestVersion2()
print a
return a
elif self.a:
#say to program that python is working
print('Python version found')
self.Settings.setValue('Python/PythonPath', str(Python))
self.Settings.sync()
return True
elif ((self.ID is not None) & (self.a is False)):
return False
def Error(self):
self.a = False
def TestVersion2(self):
print('Testing python version 2')
self.Test.readyReadStandardError.connect(self.getOutput)
Python = 'python2.7'
self.Test.start(Python, ['-V'])
self.Test.waitForStarted()
self.Test.waitForFinished()
self.Test.terminate()
if (self.a is False):
#say thar python is not working
return False
else:
self.Settings.setValue('Python/PythonPath', str(Python))
self.Settings.sync()
return True
def getOutput(self):
Out = str(self.Test.readAllStandardError())
print(Out)
if Out > 'Python 2.8':
self.a = False
return
self.a = True
class TestPython(object):
def __init__(self, ID=None):
self.Test = QProcess()
self.ID = ID
#a and b to test if i get a output or command error
self.a = True
self.Settings = QtCore.QSettings('Tyrant.cfg',
QtCore.QSettings.IniFormat)
def TestVersion(self):
print('Test python version')
self.Test.readyReadStandardError.connect(self.getOutput)
self.Test.readyReadStandardOutput.connect(self.getOutput)
if self.ID is not None:
self.Test.error.connect(self.Error)
#if i have a custom pythonpath, i'll use it here
Res = Resources()
Python = Res.getPref('Python')
#test if is a pythonpath, if not open a default
if len(Python) < 5:
Python = 'python'
self.Test.start(Python, ['-V'])
self.Test.waitForFinished()
self.Test.terminate()
if (self.a is False) & (self.ID is None):
#test a diferent command to run python 2.7
a = self.TestVersion2()
print a
return a
elif self.a:
#say to program that python is working
print('Python version found')
self.Settings.setValue('Python/PythonPath', str(Python))
self.Settings.sync()
return True
elif ((self.ID is not None) & (self.a is False)):
return False
def Error(self):
self.a = False
def TestVersion2(self):
print('Testing python version 2')
self.Test.readyReadStandardError.connect(self.getOutput)
Python = 'python2.7'
self.Test.start(Python, ['-V'])
self.Test.waitForStarted()
self.Test.waitForFinished()
self.Test.terminate()
if (self.a is False):
#say thar python is not working
return False
else:
self.Settings.setValue('Python/PythonPath', str(Python))
self.Settings.sync()
return True
def getOutput(self):
Out = str(self.Test.readAllStandardError())
print(Out)
if Out > 'Python 2.8':
self.a = False
return
self.a = True
class CfdConsoleProcess:
""" Class to run a console process asynchronously, printing output and
errors to the FreeCAD console and allowing clean termination in Linux
and Windows """
def __init__(self, finishedHook=None, stdoutHook=None, stderrHook=None):
self.process = QProcess()
self.finishedHook = finishedHook
self.stdoutHook = stdoutHook
self.stderrHook = stderrHook
self.process.finished.connect(self.finished)
self.process.readyReadStandardOutput.connect(self.readStdout)
self.process.readyReadStandardError.connect(self.readStderr)
self.print_next_error_lines = 0
self.print_next_error_file = False
def __del__(self):
self.terminate()
def start(self, cmd, env_vars=None, working_dir=None):
""" Start process and return immediately """
self.print_next_error_lines = 0
self.print_next_error_file = False
env = QtCore.QProcessEnvironment.systemEnvironment()
if env_vars:
for key in env_vars:
env.insert(key, env_vars[key])
self.process.setProcessEnvironment(env)
if working_dir:
self.process.setWorkingDirectory(working_dir)
if platform.system() == "Windows":
# Run through a wrapper process to allow clean termination
cmd = [
os.path.join(FreeCAD.getHomePath(), "bin", "python.exe"),
'-u', # Prevent python from buffering stdout
os.path.join(os.path.dirname(__file__), "WindowsRunWrapper.py")
] + cmd
print("Raw command: ", cmd)
self.process.start(cmd[0], cmd[1:])
def terminate(self):
if platform.system() == "Windows":
# terminate() doesn't operate and kill() doesn't allow cleanup and leaves mpi processes running
# Instead, instruct wrapper program to kill child process and itself cleanly with ctrl-break signal
self.process.write(b"terminate\n")
self.process.waitForBytesWritten() # 'flush'
else:
self.process.terminate()
self.process.waitForFinished()
def finished(self, exit_code):
if self.finishedHook:
self.finishedHook(exit_code)
def readStdout(self):
# Ensure only complete lines are passed on
text = ""
while self.process.canReadLine():
byteArr = self.process.readLine()
text += QTextStream(byteArr).readAll()
if text:
print(text, end='') # Avoid displaying on FreeCAD status bar
if self.stdoutHook:
self.stdoutHook(text)
# Must be at the end as it can cause re-entrance
if FreeCAD.GuiUp:
FreeCAD.Gui.updateGui()
def readStderr(self):
# Ensure only complete lines are passed on
# Print any error output to console
self.process.setReadChannel(QProcess.StandardError)
text = ""
while self.process.canReadLine():
byteArr = self.process.readLine()
text += QTextStream(byteArr).readAll()
if text:
if self.stderrHook:
self.stderrHook(text)
FreeCAD.Console.PrintError(text)
# Must be at the end as it can cause re-entrance
if FreeCAD.GuiUp:
FreeCAD.Gui.updateGui()
self.process.setReadChannel(QProcess.StandardOutput)
def state(self):
return self.process.state()
def waitForStarted(self):
return self.process.waitForStarted()
def waitForFinished(self):
# For some reason waitForFinished doesn't always return - so we resort to a failsafe timeout:
while True:
ret = self.process.waitForFinished(1000)
if self.process.error() != self.process.Timedout:
self.readStdout()
self.readStderr()
return ret
if self.process.state() == self.process.NotRunning:
self.readStdout()
self.readStderr()
return True
def exitCode(self):
return self.process.exitCode()
def processErrorOutput(self, err):
"""
Process standard error text output from OpenFOAM
:param err: Standard error output, single or multiple lines
:return: A message to be printed on console, or None
"""
ret = ""
errlines = err.split('\n')
for errline in errlines:
if len(errline) > 0: # Ignore blanks
if self.print_next_error_lines > 0:
ret += errline + "\n"
self.print_next_error_lines -= 1
if self.print_next_error_file and "file:" in errline:
ret += errline + "\n"
self.print_next_error_file = False
words = errline.split(' ',
1) # Split off first field for parallel
FATAL = "--> FOAM FATAL ERROR"
FATALIO = "--> FOAM FATAL IO ERROR"
if errline.startswith(FATAL) or (len(words) > 1 and
words[1].startswith(FATAL)):
self.print_next_error_lines = 1
ret += "OpenFOAM fatal error:\n"
elif errline.startswith(FATALIO) or (
len(words) > 1 and words[1].startswith(FATALIO)):
self.print_next_error_lines = 1
self.print_next_error_file = True
ret += "OpenFOAM IO error:\n"
if len(ret) > 0:
return ret
else:
return None
def parse_asn1(*files, **options):
""" Call the ASN.1 parser on a number of files, and return the module
containing the AST
This function uses QProcess to launch the ASN.1 compiler because
the subprocess module from Python has issues on the Windows platform
"""
global AST
ast_version = options.get("ast_version", ASN1.UniqueEnumeratedNames)
rename_policy = options.get("rename_policy", ASN1.NoRename)
flags = options.get("flags", [ASN1.AstOnly])
assert isinstance(ast_version, ASN1)
assert isinstance(rename_policy, ASN1)
assert isinstance(flags, list)
# if os.name == 'posix' and hasattr(sys, 'frozen'):
# Frozen Linux binaries are expected to use the frozen ASN.1 compiler
# No: there are issues with freezing the .NET applications - discard
# asn1exe = 'asn1scc'
# else:
# asn1exe = 'asn1.exe'
path_to_asn1scc = spawn.find_executable("asn1.exe")
if not path_to_asn1scc:
raise TypeError("ASN.1 Compiler not found in path")
if os.name == "posix":
path_to_mono = spawn.find_executable("mono")
if not path_to_mono:
raise TypeErorr('"mono" not found in path. Please install it.')
binary = path_to_mono
arg0 = path_to_asn1scc
else:
binary = path_to_asn1scc
arg0 = ""
asn1scc_root = os.path.abspath(os.path.dirname(path_to_asn1scc))
# Create a temporary directory to store dataview.py and import it
tempdir = tempfile.mkdtemp()
sys.path.append(tempdir)
if os.name == "nt":
# On windows, remove the drive letter, workaround to ASN1SCC bug
tempdir = tempdir[2:]
asn1scc_root = asn1scc_root[2:]
filename = str(uuid.uuid4()).replace("-", "_")
filepath = tempdir + os.sep + filename + ".py"
stg = asn1scc_root + os.sep + "python.stg"
args = [
arg0,
"-customStgAstVerion",
str(ast_version.value),
"-customStg",
stg + "::" + filepath,
"-renamePolicy",
str(rename_policy.value),
] + list(*files)
asn1scc = QProcess()
LOG.debug(os.getcwd())
LOG.debug(binary + " " + " ".join(args))
asn1scc.start(binary, args)
if not asn1scc.waitForStarted():
raise TypeError("Could not start ASN.1 Compiler")
if not asn1scc.waitForFinished():
raise TypeError("Execution of ASN.1 Compiler timed out")
exitcode = asn1scc.exitCode()
result = asn1scc.readAllStandardError()
if exitcode != 0:
raise TypeError("ASN.1 Compiler Error (exit code = {}) - {}".format(exitcode, str(result)))
else:
if filename in AST.viewkeys():
# Re-import module if it was already loaded
ast = AST[filename]
reload(ast)
else:
ast = importlib.import_module(filename)
AST[filename] = ast
return ast
