tar -xf basemap-1.0.7.tar.gz
cd basemap-1.0.7
cd geos-3.3.3
export GEOS_DIR=/opt/geos  # 指到自己要安装的目录 
./configure --prefix=$GEOS_DIR
make; make install
cd ../
python setup.py install # 记得要选对python版本

>>> from mpl_toolkits.basemap import Basemap  # 打开python prompt 验证成功 

from mpl_toolkits.basemap import Basemap
from geolite2 import geolite2
import matplotlib.pyplot as plt
from flask import Flask, send_file
from io import BytesIO
from sqlalchemy import create_engine, MetaData
app = Flask(__name__)

engine = create_engine('postgres://dbuser:dbpass@172.16.160.111/weblog')
metadata = MetaData(bind=engine)


def plot(image):
    import hashlib
    import pickle
    read = geolite2.reader()
    ress = list(engine.execute('select "raddr" from weblog\
    where "Updated" > CURRENT_TIMESTAMP - INTERVAL \'30 days\''))
    print(len(ress))
    iplist = []
    ipset = set()
    for i in ress:
        if i[0] not in ipset:
            iplist.append(i[0])
            ipset.add(i[0])
    print(len(iplist))
    loclist = []
    locsset = set()
    for i in iplist:
        try:
            loc = read.get(i)['location']
        except:
            pass
        hashloc = hashlib.md5(pickle.dumps(loc)).hexdigest()
        if hashloc not in locsset:
            loclist.append(loc)
            locsset.add(hashloc)
    plt.figure(figsize=(10, 10))
    map = Basemap(
        projection='merc', llcrnrlon=70, llcrnrlat=15,
        urcrnrlon=140, urcrnrlat=55, lat_0=15, lon_0=95, resolution='l')
    map.drawcoastlines()
    map.drawcountries()
    map.fillcontinents(color='coral')
    map.drawmapboundary()
    print(len(loclist))
    for loc in loclist:
        x, y = map(loc.get('longitude'), loc.get('latitude'))
        map.plot(x, y, 'bo', markersize=4)
    plt.savefig(image, format='png')


@app.route('/image.png')
def image_png():
    image = BytesIO()
    plot(image)
    image.seek(0)
    return send_file(image,
                     attachment_filename="image.png",
                     as_attachment=True)


@app.route('/')
def index():
    return '<img src="image.png">'


app.run(debug=True)
# geolite2.close()