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Bug in running selected code in terminal #770
Description
Environment data
VS Code version: 1.19.3 (1.19.3)
Python Extension version: 2018.1.0
Python Version: 3.6.1
OS and version: MAC OS High Sierra 10.13.1
Actual behavior
When I run the following code using the Run Selection in Python Terminal Command, it gives me an error saying SyntaxError: invalid syntax. However, when I remove #BUGLINE2 in the for loop, this script becomes runnable using the same command. So I think there is a bug in parsing multiline comments written by #.
import numpy as np
import matplotlib.pyplot as plt
from matplotlib.colors import ListedColormap
from sklearn import neighbors, datasets
n_neighbors = 15
# import some data to play with
iris = datasets.load_iris()
# we only take the first two features. We could avoid this ugly
# slicing by using a two-dim dataset
X = iris.data[:, :2]
y = iris.target
h = .02 # step size in the mesh
# Create color maps
cmap_light = ListedColormap(['#FFAAAA', '#AAFFAA', '#AAAAFF'])
cmap_bold = ListedColormap(['#FF0000', '#00FF00', '#0000FF'])
for weights in ['uniform', 'distance']:
clf = neighbors.KNeighborsClassifier(n_neighbors, weights=weights)
clf.fit(X, y)
# BUGLINE1
# BUGLINE2
x_min, x_max = X[:, 0].min() - 1, X[:, 0].max() + 1
y_min, y_max = X[:, 1].min() - 1, X[:, 1].max() + 1
xx, yy = np.meshgrid(np.arange(x_min, x_max, h),np.arange(y_min, y_max, h))
Z = clf.predict(np.c_[xx.ravel(), yy.ravel()])
# Put the result into a color plot
Z = Z.reshape(xx.shape)
plt.figure()
plt.pcolormesh(xx, yy, Z, cmap=cmap_light)
# Plot also the training points
plt.scatter(X[:, 0], X[:, 1], c=y, cmap=cmap_bold,edgecolor='k', s=20)
plt.xlim(xx.min(), xx.max())
plt.ylim(yy.min(), yy.max())
plt.show()Expected behavior
Should run smoothly and produce a few nice plots since the code is directly copied from Scikitlearn library.
Steps to reproduce:
Just copy and paste into vscode, select all and choose Run Selection in Python Terminal.
Logs
Output from Python output panel
>>> for weights in ['uniform', 'distance']:
... clf = neighbors.KNeighborsClassifier(n_neighbors, weights=weights)
... clf.fit(X, y)
... # BUGLINE1
... # BUGLINE2
... x_min, x_max = X[:, 0].min() - 1, X[:, 0].max() + 1
... y_min, y_max = X[:, 1].min() - 1, X[:, 1].max() + 1
... xx, yy = np.meshgrid(np.arange(x_min, x_max, h),np.arange(y_min, y_max, h))
... Z = clf.predict(np.c_[xx.ravel(), yy.ravel()])
... # Put the result into a color plot
... Z = Z.reshape(xx.shape)
... plt.figure()
... xx, xx, #P xx, xer( xx, edgecolor='k', s=20)
File "<stdin>", line 13
xx, xx, # P xx, xer( xx, edgecolor='k', s=20)
^
IndentationError: unexpected indent
>>> plt.xlim(xx.min(), xx.max())
File "<stdin>", line 1
plt.xlim(xx.min(), xx.max())
^
IndentationError: unexpected indent
>>> plt.ylim(yy.min(), yy.max())
File "<stdin>", line 1
plt.ylim(yy.min(), yy.max())
^
IndentationError: unexpected indent
>>> plt.show()
Output from Console window (Help->Developer Tools menu)
ERR Cannot read property 'isEmpty' of undefined: TypeError: Cannot read property 'isEmpty' of undefined
at PythonDefinitionProvider.provideDefinition (/Users/daqiansun/.vscode/extensions/ms-python.python-2018.1.0/out/client/providers/definitionProvider.js:36:34)
at PythonDefinitionProvider.descriptor.value (/Users/daqiansun/.vscode/extensions/ms-python.python-2018.1.0/out/client/telemetry/index.js:40:43)
at /Applications/Visual Studio Code.app/Contents/Resources/app/out/vs/workbench/node/extensionHostProcess.js:440:20
at /Applications/Visual Studio Code.app/Contents/Resources/app/out/vs/workbench/node/extensionHostProcess.js:93:1004
at new n.Class.derive._oncancel (/Applications/Visual Studio Code.app/Contents/Resources/app/out/vs/workbench/node/extensionHostProcess.js:74:234)
at Object.t.asWinJsPromise (/Applications/Visual Studio Code.app/Contents/Resources/app/out/vs/workbench/node/extensionHostProcess.js:93:967)
at e.provideDefinition (/Applications/Visual Studio Code.app/Contents/Resources/app/out/vs/workbench/node/extensionHostProcess.js:439:963)
at /Applications/Visual Studio Code.app/Contents/Resources/app/out/vs/workbench/node/extensionHostProcess.js:452:421
at e._withAdapter (/Applications/Visual Studio Code.app/Contents/Resources/app/out/vs/workbench/node/extensionHostProcess.js:451:24)
at e.$provideDefinition (/Applications/Visual Studio Code.app/Contents/Resources/app/out/vs/workbench/node/extensionHostProcess.js:452:383)
at t.e.invoke (/Applications/Visual Studio Code.app/Contents/Resources/app/out/vs/workbench/node/extensionHostProcess.js:516:87)
at e._invokeHandler (/Applications/Visual Studio Code.app/Contents/Resources/app/out/vs/workbench/node/extensionHostProcess.js:357:580)
at e._receiveOneMessage (/Applications/Visual Studio Code.app/Contents/Resources/app/out/vs/workbench/node/extensionHostProcess.js:357:270)
at /Applications/Visual Studio Code.app/Contents/Resources/app/out/vs/workbench/node/extensionHostProcess.js:356:206
at /Applications/Visual Studio Code.app/Contents/Resources/app/out/vs/workbench/node/extensionHostProcess.js:358:204
at /Applications/Visual Studio Code.app/Contents/Resources/app/out/vs/workbench/node/extensionHostProcess.js:85:988
Activity
DonJayamanne commentedon Feb 13, 2018
I can replicate the exact same behaviour in a terminal window outside of VS Code (just use Mac Terminal).
I.e. its not an issue with the extension nor VS Code.