Python 库 seaborn 在 Visual Studio 中无法正常工作

Python library seaborn doesn't work properly in Visual Studio

我尝试 运行 Visual Studio 中的 Python 脚本,其中包括 Python 库 matplotlib 和 seaborn。包含 matplotlib 的脚本仅 运行s 正确并显示绘图但是,包含 seaborn 的脚本不执行任何操作(无错误)。我通过安装 Anaconda 安装了这些库。

能正常运行的代码是matplotlib官网的例子:

"""
========
Barchart
========

A bar plot with errorbars and height labels on individual bars
"""
import numpy as np
import matplotlib.pyplot as plt

N = 5
men_means = (20, 35, 30, 35, 27)
men_std = (2, 3, 4, 1, 2)

ind = np.arange(N)  # the x locations for the groups
width = 0.35       # the width of the bars

fig, ax = plt.subplots()
rects1 = ax.bar(ind, men_means, width, color='r', yerr=men_std)

women_means = (25, 32, 34, 20, 25)
women_std = (3, 5, 2, 3, 3)
rects2 = ax.bar(ind + width, women_means, width, color='y', yerr=women_std)

# add some text for labels, title and axes ticks
ax.set_ylabel('Scores')
ax.set_title('Scores by group and gender')
ax.set_xticks(ind + width / 2)
ax.set_xticklabels(('G1', 'G2', 'G3', 'G4', 'G5'))

ax.legend((rects1[0], rects2[0]), ('Men', 'Women'))


def autolabel(rects):
    """
    Attach a text label above each bar displaying its height
    """
    for rect in rects:
        height = rect.get_height()
        ax.text(rect.get_x() + rect.get_width()/2., 1.05*height,
                '%d' % int(height),
                ha='center', va='bottom')

autolabel(rects1)
autolabel(rects2)

plt.show()

如果我运行代码:

# First, we'll import pandas, a data processing and CSV file I/O library
import pandas as pd

# We'll also import seaborn, a Python graphing library
import warnings # current version of seaborn generates a bunch of warnings that we'll ignore
warnings.filterwarnings("ignore")
import seaborn as sns
import matplotlib.pyplot as plt
sns.set(style="dark", color_codes=True)

# Next, we'll load the Iris flower dataset, which is in the "../input/" directory
iris = pd.read_csv("Iris.csv") # the iris dataset is now a Pandas DataFrame

# Let's see what's in the iris data - Jupyter notebooks print the result of the last thing you do
iris.head(1000)

# Press shift+enter to execute this cell

在 Visual Studio 中没有任何反应,但 运行 在

上使用代码

https://www.kaggle.com/benhamner/python-data-visualizations

给出正确的输出。

我使用的数据集可以在以下位置找到:

https://www.kaggle.com/benhamner/python-data-visualizations/data

如何让 seaborn 在 Visual Studio 中工作?

您在这里比较的是两个完全不同的代码。第一个代码在新 window 中生成一个图。第二个代码没有任何输出。正如代码中的注释所述,"Jupyter notebooks print the result of the last thing you do"。

Visual Studio 不这样做;或者更一般地说,python 不会这样做。如果要在 python 中打印某些内容,则需要 print 语句或函数。

在 python 2 中,执行

print iris.head(1000)

在python3中,做

print (iris.head(1000))

这一切都与seaborn无关。