One one file, I have written:
import pickle
with open('pickle test2.py', 'wb') as p:
var = {1: "a", 2: "b"}
pickle.dump(var, p)
On another ('pickle test.py') the pickled version of the var dict is being stored.
And on a separate file I have attempted to load this dict, but an UnpicklingError has occurred. I wrote:
import pickle
with open('pickle test2.py', 'rb') as p:
var = pickle.load(p)
This was the error message:
Traceback (most recent call last):
File "C:/Users/Nathan/Python/pickle test open.py", line 4, in <module>
var = pickle.load(p)
_pickle.UnpicklingError
What does this mean, and how can it be resolved?
Related
I am trying to run a simple example using sbmltoodepy and I am receiving the following error.
Traceback (most recent call last):
File "C:\Users\AppData\Roaming\JetBrains\PyCharm2021.2\scratches\scratch_79.py", line 8, in
ParseAndCreateModel(inputFilePath)#, jsonFilePath=None, outputFilePath=None)#, className="SBMLmodel")
File "C:\Users\AppData\Roaming\Python\Python39\site-packages\sbmltoodepy\utilities.py", line 66, in ParseAndCreateModel
modelData = ParseSBMLFile(inputFilePath)
File "C:\Users\AppData\Roaming\Python\Python39\site-packages\sbmltoodepy\parse.py", line 284, in ParseSBMLFile
assert(doc.getNumErrors() == 0)
AssertionError
Here is the code that I used.
import sbmltoodepy
from sbmltoodepy import ParseAndCreateModel
inputFilePath = "E:/Borisov2009_insulin_EGF.xml"
ParseAndCreateModel(inputFilePath, jsonFilePath=None, outputFilePath=None, className="SBMLmodel")
model = sbmltoodepy.SBMLmodel()
model.RunSimulation(1, absoluteTolerance = 1e-12, relativeTolerance = 1e-6)
Thank you in advance for your time.
Traceback (most recent call last):
File "C:\Users\me\folder\project.py", line 999, in <module>
load_data()
File "C:\Users\me\folder\project.py", line 124, in load_data
globals()[var_name] = pickle.(f)
EOFError: Ran out of input
I get this error when trying to unpickle a file, even though the file is non-empty. I've tried opening the file and printing its value and it is non-empty, but the unpickler returns this result still.
Anyone know why this may be happening?
The code here is as follows:
files_to_load = ['var1','var2',...]
def load_data():
for var_name in files_to_load:
path = '{}.txt'.format(var_name)
if os.path.exists(path):
with open(path, 'rb') as f:
globals()[var_name] = pickle.Unpickler(f).load()
else: globals()[var_name] = {}
from weka.clusterers import Clusterer
import weka.core.converters as converters
data = converters.load_any_file("/home/ubuntu/test.csv")
data.class_is_last()
clusterer = Clusterer(classname="weka.clusterers.SimpleKMeans", options=["-N", "3"])
clusterer.build_clusterer(data)
print(clusterer)
# cluster the data
for inst in data:
cl = clusterer.cluster_instance(inst) # 0-based cluster index
dist = clusterer.distribution_for_instance(inst) # cluster membership distribution
print("cluster=" + str(cl) + ", distribution=" + str(dist))
I used the above code for doing k means custering i am not able to execute the program
The following are the errors I get
Traceback (most recent call last):
File "clus.py", line 6, in <module>
data = converters.load_any_file("/home/ubuntu/hello.csv")
File "/usr/local/lib/python2.7/dist-packages/weka/core/converters.py", line 255, in load_any_file
loader = loader_for_file(filename)
File "/usr/local/lib/python2.7/dist-packages/weka/core/converters.py", line 239, in loader_for_file
"(Ljava/lang/String;)Lweka/core/converters/AbstractFileLoader;", filename)
File "/usr/local/lib/python2.7/dist-packages/javabridge/jutil.py", line 932, in static_call
fn = make_static_call(class_name, method_name, sig)
File "/usr/local/lib/python2.7/dist-packages/javabridge/jutil.py", line 903, in make_static_call
klass = env.find_class(class_name)
AttributeError: 'NoneType' object has no attribute 'find_class'
I don't know why I am getting these errors. Can someone help me with this?
As described in the python-weka-wrapper API you have to import and start the Java Virtual Machine:
import weka.core.jvm as jvm
jvm.start()
It should solve your problem.
arcpy.env.workspace("C:/Student/PythonGP10_0/Data/SanJuan.gdb")
arcpy.env.overwriteOutput = True
fcList = arcpy.ListFeatureClasses()
bufferList = []
for fc in fcList:
if fc == "Lakes" or fc == "Streams":
arcpy.Buffer_analysis(fc, fc + "Buffer", "1000 meters")
bufferList.append(fc + "Buffer")
arcpy.Union_analysis(bufferList, "WaterBuffers")
Followed by this error when I run the script:
Traceback (most recent call last):
File "C:\Python27\ArcGIS10.2\Lib\site-packages\pythonwin\pywin\framework\scriptutils.py", line 326, in RunScript
exec codeObject in __main__.__dict__
File "C:\Student\PythonGP10_0\Scripts\BufferWater.py", line 3, in <module>
arcpy.env.workspace("C:/Student/PythonGP10_0/Data/SanJuan.gdb")
TypeError: 'unicode' object is not callable
According to the ArcGIS Help, arcpy.env.workspace should be set, not to be called:
arcpy.env.workspace = "C:/Student/PythonGP10_0/Data/SanJuan.gdb"
Hello I have an Error and I don´t the reason:
>>> class Fruits:pass
...
>>> banana = Fruits()
>>> banana.color = 'yellow'
>>> banana.value = 30
>>> import pickle
>>> filehandler = open("Fruits.obj",'w')
>>> pickle.dump(banana,filehandler)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "C:\Python31\lib\pickle.py", line 1354, in dump
Pickler(file, protocol, fix_imports=fix_imports).dump(obj)
TypeError: must be str, not bytes
>>>
I don´t know how to solve this error because I don´t understand it.
Thank you so much.
You have to open your filehandler in binary mode, use wb instead of w:
filehandler = open(b"fruits.obj","wb")