Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_maint.8.0.x_Buildings.Obsolete.Utilities.IO.Python27.Functions.Examples.Exchange.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.0.1-maint.8.0.x/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 3.2.3+maint.om/package.mo", uses=false) Using package ModelicaServices with version 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 3.2.3+maint.om/package.mo) Using package Modelica with version 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo) Using package Complex with version 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo) Using package Buildings with version 8.0.1 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.0.1-maint.8.0.x/package.mo) Running command: "" <> buildModelFMU(Buildings.Obsolete.Utilities.IO.Python27.Functions.Examples.Exchange,fileNamePrefix="Buildings_maint_8_0_x_Buildings_Obsolete_Utilities_IO_Python27_Functions_Examples_Exchange",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.Obsolete.Utilities.IO.Python27.Functions.Examples.Exchange,fileNamePrefix="Buildings_maint_8_0_x_Buildings_Obsolete_Utilities_IO_Python27_Functions_Examples_Exchange",fmuType="me",version="2.0",platforms={"static"}) Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.0.1-maint.8.0.x/package.mo): time 1.644/1.644, allocations: 288.2 MB / 303.2 MB, free: 8.016 MB / 234.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo): time 0.001343/0.001343, allocations: 183.3 kB / 371.8 MB, free: 10.24 MB / 298.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.604/1.604, allocations: 205.4 MB / 0.6305 GB, free: 10.02 MB / 458.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 3.2.3+maint.om/package.mo): time 0.001235/0.001235, allocations: 94.86 kB / 0.7439 GB, free: 5.941 MB / 0.5573 GB Notification: Performance of FrontEnd - loaded program: time 0.00045/0.0004504, allocations: 10.28 kB / 0.8669 GB, free: 142 MB / 0.6198 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.2505/0.251, allocations: 115.3 MB / 0.9795 GB, free: 27.56 MB / 0.6198 GB Notification: Performance of NFInst.instantiate(Buildings.Obsolete.Utilities.IO.Python27.Functions.Examples.Exchange): time 0.001005/0.252, allocations: 266.3 kB / 0.9797 GB, free: 27.3 MB / 0.6198 GB Notification: Performance of NFInst.instExpressions: time 0.001995/0.2541, allocations: 1.203 MB / 0.9809 GB, free: 26.09 MB / 0.6198 GB Notification: Performance of NFInst.updateImplicitVariability: time 3.156e-05/0.2541, allocations: 0 / 0.9809 GB, free: 26.09 MB / 0.6198 GB Notification: Performance of NFTyping.typeComponents: time 0.0001127/0.2543, allocations: 11.92 kB / 0.9809 GB, free: 26.08 MB / 0.6198 GB Notification: Performance of NFTyping.typeBindings: time 5.679e-05/0.2543, allocations: 0 / 0.9809 GB, free: 26.08 MB / 0.6198 GB Notification: Performance of NFTyping.typeClassSections: time 0.0007706/0.2551, allocations: 263.4 kB / 0.9812 GB, free: 25.82 MB / 0.6198 GB Notification: Performance of NFFlatten.flatten: time 0.0001007/0.2552, allocations: 39.94 kB / 0.9812 GB, free: 25.78 MB / 0.6198 GB Notification: Performance of NFFlatten.resolveConnections: time 5.369e-05/0.2553, allocations: 4 kB / 0.9812 GB, free: 25.78 MB / 0.6198 GB Notification: Performance of NFEvalConstants.evaluate: time 5.561e-05/0.2553, allocations: 47.88 kB / 0.9813 GB, free: 25.73 MB / 0.6198 GB Notification: Performance of NFSimplifyModel.simplify: time 6.969e-05/0.2554, allocations: 39.91 kB / 0.9813 GB, free: 25.69 MB / 0.6198 GB Notification: Performance of NFPackage.collectConstants: time 2.112e-05/0.2555, allocations: 0 / 0.9813 GB, free: 25.69 MB / 0.6198 GB Notification: Performance of NFFlatten.collectFunctions: time 0.0005355/0.256, allocations: 171.7 kB / 0.9815 GB, free: 25.52 MB / 0.6198 GB Notification: Performance of NFScalarize.scalarize: time 2.175e-05/0.256, allocations: 4 kB / 0.9815 GB, free: 25.52 MB / 0.6198 GB Notification: Performance of NFVerifyModel.verify: time 4.226e-05/0.2561, allocations: 37.64 kB / 0.9815 GB, free: 25.48 MB / 0.6198 GB Notification: Performance of NFConvertDAE.convert: time 0.0003571/0.2564, allocations: 203.7 kB / 0.9817 GB, free: 25.28 MB / 0.6198 GB Notification: Performance of FrontEnd - DAE generated: time 2.685e-06/0.2565, allocations: 0 / 0.9817 GB, free: 25.28 MB / 0.6198 GB Notification: Performance of FrontEnd: time 1.654e-06/0.2565, allocations: 0 / 0.9817 GB, free: 25.28 MB / 0.6198 GB Notification: Performance of Transformations before backend: time 4.91e-06/0.2565, allocations: 0 / 0.9817 GB, free: 25.28 MB / 0.6198 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 6 * Number of variables: 6 Notification: Performance of Generate backend data structure: time 0.0003814/0.2569, allocations: 421.2 kB / 0.9821 GB, free: 24.81 MB / 0.6198 GB Notification: Performance of prepare preOptimizeDAE: time 4.437e-05/0.2569, allocations: 8.031 kB / 0.9821 GB, free: 24.8 MB / 0.6198 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 4.339e-05/0.257, allocations: 38.56 kB / 0.9822 GB, free: 24.76 MB / 0.6198 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 4.292e-05/0.257, allocations: 4 kB / 0.9822 GB, free: 24.75 MB / 0.6198 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.000113/0.2571, allocations: 182.9 kB / 0.9823 GB, free: 24.54 MB / 0.6198 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 1.46e-05/0.2572, allocations: 4 kB / 0.9823 GB, free: 24.53 MB / 0.6198 GB Notification: Performance of preOpt expandDerOperator (simulation): time 2.608e-05/0.2572, allocations: 4 kB / 0.9823 GB, free: 24.53 MB / 0.6198 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0002041/0.2574, allocations: 129.5 kB / 0.9825 GB, free: 24.39 MB / 0.6198 GB Notification: Performance of preOpt findStateOrder (simulation): time 9.828e-06/0.2574, allocations: 0 / 0.9825 GB, free: 24.39 MB / 0.6198 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 1.862e-05/0.2574, allocations: 0 / 0.9825 GB, free: 24.39 MB / 0.6198 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 4.288e-06/0.2574, allocations: 0 / 0.9825 GB, free: 24.39 MB / 0.6198 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 9.185e-05/0.2575, allocations: 67.94 kB / 0.9825 GB, free: 24.33 MB / 0.6198 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.0001303/0.2577, allocations: 153.6 kB / 0.9827 GB, free: 24.13 MB / 0.6198 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0001253/0.2578, allocations: 122.6 kB / 0.9828 GB, free: 24 MB / 0.6198 GB Notification: Performance of preOpt evalFunc (simulation): time 8.125e-06/0.2578, allocations: 0 / 0.9828 GB, free: 24 MB / 0.6198 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.024e-05/0.2579, allocations: 30.56 kB / 0.9828 GB, free: 23.96 MB / 0.6198 GB Notification: Performance of pre-optimization done (n=6): time 1.453e-06/0.2579, allocations: 3.938 kB / 0.9828 GB, free: 23.96 MB / 0.6198 GB Notification: Performance of matching and sorting (n=6): time 0.0004622/0.2583, allocations: 380.2 kB / 0.9832 GB, free: 23.55 MB / 0.6198 GB Notification: Performance of inlineWhenForInitialization (initialization): time 4.353e-05/0.2584, allocations: 89.09 kB / 0.9833 GB, free: 23.45 MB / 0.6198 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 7.649e-05/0.2585, allocations: 125.8 kB / 0.9834 GB, free: 23.32 MB / 0.6198 GB Notification: Performance of collectPreVariables (initialization): time 1.93e-05/0.2585, allocations: 33.73 kB / 0.9834 GB, free: 23.28 MB / 0.6198 GB Notification: Performance of collectInitialEqns (initialization): time 3.08e-05/0.2585, allocations: 84.14 kB / 0.9835 GB, free: 23.19 MB / 0.6198 GB Notification: Performance of collectInitialBindings (initialization): time 3.63e-05/0.2586, allocations: 15.8 kB / 0.9835 GB, free: 23.18 MB / 0.6198 GB Notification: Performance of simplifyInitialFunctions (initialization): time 1.275e-05/0.2586, allocations: 4 kB / 0.9835 GB, free: 23.17 MB / 0.6198 GB Notification: Performance of setup shared object (initialization): time 5.739e-05/0.2587, allocations: 322.8 kB / 0.9838 GB, free: 22.85 MB / 0.6198 GB Notification: Performance of preBalanceInitialSystem (initialization): time 7.52e-05/0.2587, allocations: 59.95 kB / 0.9839 GB, free: 22.79 MB / 0.6198 GB Notification: Performance of partitionIndependentBlocks (initialization): time 7.229e-05/0.2588, allocations: 59.94 kB / 0.9839 GB, free: 22.73 MB / 0.6198 GB Notification: Performance of analyzeInitialSystem (initialization): time 8.305e-05/0.2589, allocations: 97.84 kB / 0.984 GB, free: 22.63 MB / 0.6198 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.923e-06/0.2589, allocations: 0 / 0.984 GB, free: 22.63 MB / 0.6198 GB Notification: Performance of matching and sorting (n=6) (initialization): time 0.0002543/0.2592, allocations: 231.2 kB / 0.9843 GB, free: 22.39 MB / 0.6198 GB Notification: Performance of prepare postOptimizeDAE: time 3.492e-05/0.2592, allocations: 45.69 kB / 0.9843 GB, free: 22.34 MB / 0.6198 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 5.851e-06/0.2592, allocations: 0 / 0.9843 GB, free: 22.34 MB / 0.6198 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.438e-05/0.2593, allocations: 0 / 0.9843 GB, free: 22.34 MB / 0.6198 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 1.714e-06/0.2593, allocations: 4 kB / 0.9843 GB, free: 22.34 MB / 0.6198 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 5.531e-06/0.2593, allocations: 0 / 0.9843 GB, free: 22.34 MB / 0.6198 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.000316/0.2596, allocations: 27.81 kB / 0.9843 GB, free: 22.31 MB / 0.6198 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 3.757e-05/0.2596, allocations: 15.98 kB / 0.9844 GB, free: 22.29 MB / 0.6198 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 1 * Number of states: 0 () * Number of discrete variables: 3 (yI1[1],yI2[1],yI2[2]) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (1): * Single equations (assignments): 0 * Array equations: 0 * Algorithm blocks: 1 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 0 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of prepare postOptimizeDAE: time 0.0001334/0.2598, allocations: 171.5 kB / 0.9845 GB, free: 22.11 MB / 0.6198 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 2.734e-05/0.2598, allocations: 8 kB / 0.9845 GB, free: 22.1 MB / 0.6198 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 1.204e-05/0.2598, allocations: 4.375 kB / 0.9845 GB, free: 22.1 MB / 0.6198 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 3.196e-06/0.2598, allocations: 4 kB / 0.9845 GB, free: 22.1 MB / 0.6198 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 4.95e-06/0.2599, allocations: 0 / 0.9845 GB, free: 22.1 MB / 0.6198 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 2.164e-06/0.2599, allocations: 0 / 0.9845 GB, free: 22.1 MB / 0.6198 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 9.357e-05/0.26, allocations: 173.5 kB / 0.9847 GB, free: 21.88 MB / 0.6198 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 9.72e-07/0.26, allocations: 0 / 0.9847 GB, free: 21.88 MB / 0.6198 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 8.22e-07/0.26, allocations: 4 kB / 0.9847 GB, free: 21.88 MB / 0.6198 GB Notification: Performance of postOpt tearingSystem (simulation): time 2.454e-06/0.26, allocations: 0 / 0.9847 GB, free: 21.88 MB / 0.6198 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 2.342e-05/0.26, allocations: 15.98 kB / 0.9847 GB, free: 21.86 MB / 0.6198 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 2.554e-06/0.26, allocations: 4 kB / 0.9847 GB, free: 21.86 MB / 0.6198 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.014e-06/0.26, allocations: 4.312 kB / 0.9847 GB, free: 21.85 MB / 0.6198 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0003286/0.2604, allocations: 290.5 kB / 0.985 GB, free: 21.54 MB / 0.6198 GB Notification: Performance of postOpt removeConstants (simulation): time 2.682e-05/0.2604, allocations: 93.05 kB / 0.9851 GB, free: 21.43 MB / 0.6198 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 3.299e-05/0.2604, allocations: 4 kB / 0.9851 GB, free: 21.43 MB / 0.6198 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0002038/0.2606, allocations: 23.91 kB / 0.9851 GB, free: 21.41 MB / 0.6198 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 3.429e-05/0.2607, allocations: 11.98 kB / 0.9851 GB, free: 21.39 MB / 0.6198 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 2.333e-05/0.2607, allocations: 20.02 kB / 0.9851 GB, free: 21.38 MB / 0.6198 GB Notification: Performance of sorting global known variables: time 3.626e-05/0.2608, allocations: 99.25 kB / 0.9852 GB, free: 21.28 MB / 0.6198 GB Notification: Performance of sort global known variables: time 1.2e-07/0.2608, allocations: 0 / 0.9852 GB, free: 21.28 MB / 0.6198 GB Notification: Performance of remove unused functions: time 0.0003597/0.2611, allocations: 87.89 kB / 0.9853 GB, free: 21.19 MB / 0.6198 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * Number of states: 0 () * Number of discrete variables: 3 (yI1[1],yI2[1],yI2[2]) * Number of discrete states: 3 (yI2[2],yI2[1],yI1[1]) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (1): * Single equations (assignments): 0 * Array equations: 0 * Algorithm blocks: 1 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 0 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of Backend phase and start with SimCode phase: time 0.001225/0.2624, allocations: 1.123 MB / 0.9864 GB, free: 20.13 MB / 0.6198 GB Notification: Performance of simCode: created initialization part: time 0.0003194/0.2627, allocations: 287.2 kB / 0.9867 GB, free: 19.84 MB / 0.6198 GB Notification: Performance of simCode: created event and clocks part: time 2.575e-06/0.2627, allocations: 0 / 0.9867 GB, free: 19.84 MB / 0.6198 GB Notification: Performance of simCode: created simulation system equations: time 0.0001572/0.2629, allocations: 211.3 kB / 0.9869 GB, free: 19.62 MB / 0.6198 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0001153/0.263, allocations: 8 kB / 0.9869 GB, free: 19.61 MB / 0.6198 GB Warning: Could not resolve URI ("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.0.1-maint.8.0.x/legal.html") at compile-time; copying all loaded packages into the FMU Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.0006053/0.2636, allocations: 323 kB / 0.9872 GB, free: 19.26 MB / 0.6198 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0001277/0.2637, allocations: 0.6887 MB / 0.9879 GB, free: 18.54 MB / 0.6198 GB Notification: Performance of simCode: alias equations: time 6.681e-05/0.2638, allocations: 55.86 kB / 0.9879 GB, free: 18.49 MB / 0.6198 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 2.677e-05/0.2639, allocations: 11.44 kB / 0.9879 GB, free: 18.48 MB / 0.6198 GB Notification: Performance of SimCode: time 3.41e-07/0.2639, allocations: 0 / 0.9879 GB, free: 18.48 MB / 0.6198 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.3995/0.6633, allocations: 4.726 MB / 0.9926 GB, free: 13.92 MB / 0.6198 GB Notification: Performance of buildModelFMU: configured platform static using cached values: time 0.0001827/0.6636, allocations: 284.3 kB / 0.9928 GB, free: 13.55 MB / 0.6198 GB Error: Error building simulator. Build log: clang -Os -fPIC -falign-functions -mfpmath=sse -fno-dollars-in-identifiers -I'/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelica/OMCompiler/build/bin/../include/omc/c/fmi' -DOMC_FMI_RUNTIME=1 -DCMINPACK_NO_DLL=1 "-I/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.0.1-maint.8.0.x/Resources/C-Sources" -c -o Buildings_maint_8_0_x_Buildings_Obsolete_Utilities_IO_Python27_Functions_Examples_Exchange.o Buildings_maint_8_0_x_Buildings_Obsolete_Utilities_IO_Python27_Functions_Examples_Exchange.c In file included from Buildings_maint_8_0_x_Buildings_Obsolete_Utilities_IO_Python27_Functions_Examples_Exchange.c:7: In file included from ./Buildings_maint_8_0_x_Buildings_Obsolete_Utilities_IO_Python27_Functions_Examples_Exchange_model.h:5: In file included from ./openmodelica.h:71: In file included from ./gc/../openmodelica_types.h:149: ./gc/omc_gc.h:218:28: warning: expression result unused [-Wunused-value] GC_register_displacement(0); ^ ./gc/omc_gc.h:222:34: warning: expression result unused [-Wunused-value] GC_set_force_unmap_on_gcollect(1); ^ 2 warnings generated. clang -Os -fPIC -falign-functions -mfpmath=sse -fno-dollars-in-identifiers -I'/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelica/OMCompiler/build/bin/../include/omc/c/fmi' -DOMC_FMI_RUNTIME=1 -DCMINPACK_NO_DLL=1 "-I/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.0.1-maint.8.0.x/Resources/C-Sources" -c -o Buildings_maint_8_0_x_Buildings_Obsolete_Utilities_IO_Python27_Functions_Examples_Exchange_functions.o Buildings_maint_8_0_x_Buildings_Obsolete_Utilities_IO_Python27_Functions_Examples_Exchange_functions.c In file included from Buildings_maint_8_0_x_Buildings_Obsolete_Utilities_IO_Python27_Functions_Examples_Exchange_functions.c:2: In file included from ./Buildings_maint_8_0_x_Buildings_Obsolete_Utilities_IO_Python27_Functions_Examples_Exchange_functions.h:3: In file included from ./meta/meta_modelica.h:49: ./gc/omc_gc.h:218:28: warning: expression result unused [-Wunused-value] GC_register_displacement(0); ^ ./gc/omc_gc.h:222:34: warning: expression result unused [-Wunused-value] GC_set_force_unmap_on_gcollect(1); ^ In file included from Buildings_maint_8_0_x_Buildings_Obsolete_Utilities_IO_Python27_Functions_Examples_Exchange_functions.c:7: In file included from ./Buildings_maint_8_0_x_Buildings_Obsolete_Utilities_IO_Python27_Functions_Examples_Exchange_includes.h:4: /home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.0.1-maint.8.0.x/Resources/C-Sources/pythonWrapper.c:22:10: fatal error: 'ModelicaUtilities.h' file not found #include ^~~~~~~~~~~~~~~~~~~~~ 2 warnings and 1 error generated. make: *** [: Buildings_maint_8_0_x_Buildings_Obsolete_Utilities_IO_Python27_Functions_Examples_Exchange_functions.o] Error 1