在获取国别码集通过导入模块pygal报以下问题：
from pygal.i18n import COUNTRIES
解决方法：
安装模块
pip3 install pygal_maps_world
from pygal_maps_world.i18n import COUNTRIES
for country_code in sorted(COUNTRIES.keys()): print(country_code,COUNTRIES[country_code]) 运行结果：
ad Andorra
ae United Arab Emirates
af Afghanistan
al Albania
am Armenia
ao Angola
aq Antarctica
ar Argentina
at Austria
au Australia
az Azerbaijan
ba Bosnia and Herzegovina
bd Bangladesh
be Belgium
bf Burkina Faso
bg Bulgaria
bh Bahrain
bi Burundi
bj Benin
bn Brunei Darussalam
bo Bolivia, Plurinational State of
br Brazil
bt Bhutan
bw Botswana
by Belarus
bz Belize
ca Canada
cd Congo, the Democratic Republic of the
cf Central African Republic
cg Congo
ch Switzerland
ci Cote d‘Ivoire
cl Chile
cm Cameroon
cn China
co Colombia
cr Costa Rica
cu Cuba
cv Cape Verde
cy Cyprus
cz Czech Republic
de Germany
dj Djibouti
dk Denmark
do Dominican Republic
dz Algeria
ec Ecuador
ee Estonia
eg Egypt
eh Western Sahara
er Eritrea
es Spain
et Ethiopia
fi Finland
fr France
ga Gabon
gb United Kingdom
ge Georgia
gf French Guiana
gh Ghana
gl Greenland
gm Gambia
gn Guinea
gq Equatorial Guinea
gr Greece
gt Guatemala
gu Guam
gw Guinea-Bissau
gy Guyana
hk Hong Kong
hn Honduras
hr Croatia
ht Haiti
hu Hungary
id Indonesia
ie Ireland
il Israel
in India
iq Iraq
ir Iran, Islamic Republic of
is Iceland
it Italy
jm Jamaica
jo Jordan
jp Japan
ke Kenya
kg Kyrgyzstan
kh Cambodia
kp Korea, Democratic People‘s Republic of
kr Korea, Republic of
kw Kuwait
kz Kazakhstan
la Lao People‘s Democratic Republic
lb Lebanon
li Liechtenstein
lk Sri Lanka
lr Liberia
ls Lesotho
lt Lithuania
lu Luxembourg
lv Latvia
ly Libyan Arab Jamahiriya
ma Morocco
mc Monaco
md Moldova, Republic of
me Montenegro
mg Madagascar
mk Macedonia, the former Yugoslav Republic of
ml Mali
mm Myanmar
mn Mongolia
mo Macao
mr Mauritania
mt Malta
mu Mauritius
mv Maldives
mw Malawi
mx Mexico
my Malaysia
mz Mozambique
na Namibia
ne Niger
ng Nigeria
ni Nicaragua
nl Netherlands
no Norway
np Nepal
nz New Zealand
om Oman
pa Panama
pe Peru
pg Papua New Guinea
ph Philippines
pk Pakistan
pl Poland
pr Puerto Rico
ps Palestine, State of
pt Portugal
py Paraguay
re Reunion
ro Romania
rs Serbia
ru Russian Federation
rw Rwanda
sa Saudi Arabia
sc Seychelles
sd Sudan
se Sweden
sg Singapore
sh Saint Helena, Ascension and Tristan da Cunha
si Slovenia
sk Slovakia
sl Sierra Leone
sm San Marino
sn Senegal
so Somalia
sr Suriname
st Sao Tome and Principe
sv El Salvador
sy Syrian Arab Republic
sz Swaziland
td Chad
tg Togo
th Thailand
tj Tajikistan
tl Timor-Leste
tm Turkmenistan
tn Tunisia
tr Turkey
tw Taiwan, Province of China
tz Tanzania, United Republic of
ua Ukraine
ug Uganda
us United States
uy Uruguay
uz Uzbekistan
va Holy See (Vatican City State)
ve Venezuela, Bolivarian Republic of
vn Viet Nam
ye Yemen
yt Mayotte
za South Africa
zm Zambia
zw Zimbabwe
Process finished with exit code 0
Python3 解决 ModuleNotFoundError: No module named 'pygal.i18n' 问题
原文地址：https://www.cnblogs.com/jerryspace/p/9963203.html