In [1]: import nltk---------------------------------------------------------------------------ModuleNotFoundError      Traceback (most recent call last)<ipython-input-1-b06499430ee0> in <module>()----> 1 import nltk/opt/python36env/lib/python3.6/site-packages/nltk/__init__.py in <module>() 135 from nltk.translate import * 136 from nltk.sem import *--> 137 from nltk.stem import * 138  139 # Packages which can be lazily imported/opt/python36env/lib/python3.6/site-packages/nltk/stem/__init__.py in <module>()  27 from nltk.stem.isri import ISRIStemmer  28 from nltk.stem.porter import PorterStemmer---> 29 from nltk.stem.snowball import SnowballStemmer  30 from nltk.stem.wordnet import WordNetLemmatizer  31 from nltk.stem.rslp import RSLPStemmer/opt/python36env/lib/python3.6/site-packages/nltk/stem/snowball.py in <module>()  24   25 from nltk import compat---> 26 from nltk.corpus import stopwords  27 from nltk.stem import porter  28 from nltk.stem.util import suffix_replace/opt/python36env/lib/python3.6/site-packages/nltk/corpus/__init__.py in <module>()  64 from nltk.tokenize import RegexpTokenizer  65 from nltk.corpus.util import LazyCorpusLoader---> 66 from nltk.corpus.reader import *  67   68 abc = LazyCorpusLoader(/opt/python36env/lib/python3.6/site-packages/nltk/corpus/reader/__init__.py in <module>() 103 from nltk.corpus.reader.categorized_sents import * 104 from nltk.corpus.reader.comparative_sents import *--> 105 from nltk.corpus.reader.panlex_lite import * 106  107 # Make sure that nltk.corpus.reader.bracket_parse gives the module, not/opt/python36env/lib/python3.6/site-packages/nltk/corpus/reader/panlex_lite.py in <module>()  13   14 import os---> 15 import sqlite3  16   17 from nltk.corpus.reader.api import CorpusReader/usr/local/lib/python3.6/sqlite3/__init__.py in <module>()  21 # 3. This notice may not be removed or altered from any source distribution.  22 ---> 23 from sqlite3.dbapi2 import */usr/local/lib/python3.6/sqlite3/dbapi2.py in <module>()  25 import collections.abc  26 ---> 27 from _sqlite3 import *  28   29 paramstyle = "qmark"ModuleNotFoundError: No module named '_sqlite3'

yum search sqlite3Loaded plugins: fastestmirrorLoading mirror speeds from cached hostfile=============================================================================== N/S matched: sqlite3 ================================================================================libsqlite3x.x86_64 : A C++ Wrapper for the SQLite3 embeddable SQL database enginelibsqlite3x-devel.x86_64 : Development files for libsqlite3xpreludedb-sqlite3.x86_64 : Plugin to use prelude with a SQLite3 databaserubygem-sqlite3.x86_64 : Allows Ruby scripts to interface with a SQLite3 databaserubygem-sqlite3-doc.noarch : Documentation for rubygem-sqlite3soci-sqlite3.x86_64 : SQLite3 back-end for socisoci-sqlite3-devel.x86_64 : SQLite3 back-end for sociuwsgi-plugin-sqlite3.x86_64 : uWSGI - SQLite3 plugindspam-sqlite3.x86_64 : SQLite v3.x storage driver for libdspamgolang-googlecode-sqlite-devel.i686 : Trivial sqlite3 binding for Gogolang-googlecode-sqlite-devel.x86_64 : Trivial sqlite3 binding for Golibsq3.x86_64 : A C++ Wrapper for the SQLite3 embeddable SQL database enginelibsq3-devel.x86_64 : Development files for libsqlite3xopendbx-sqlite.x86_64 : SQLite 3 backend - provides sqlite3 support in opendbxpython-sqlite3dbm.noarch : SQLite-backed dictionary conforming to the dbm interfacesqlite-devel.i686 : Development tools for the sqlite3 embeddable SQL database enginesqlite-devel.x86_64 : Development tools for the sqlite3 embeddable SQL database enginesqlite-tcl.x86_64 : Tcl module for the sqlite3 embeddable SQL database enginesqlite3-dbf.x86_64 : Converter of XBase / FoxPro tables to SQLitezabbix20-proxy-sqlite3.x86_64 : Zabbix proxy compiled to use SQLitezabbix22-dbfiles-sqlite3.noarch : Zabbix database schemas and patcheszabbix22-proxy-sqlite3.x86_64 : Zabbix proxy compiled to use SQLite

yum install sqlite-develLoaded plugins: fastestmirrorLoading mirror speeds from cached hostfileResolving Dependencies--> Running transaction check---> Package sqlite-devel.x86_64 0:3.7.17-8.el7 will be installed--> Finished Dependency ResolutionDependencies Resolved===================================================================================================================================================================================== Package          Arch          Version          Repository        Size=====================================================================================================================================================================================Installing: sqlite-devel         x86_64         3.7.17-8.el7         base         104 kTransaction Summary=====================================================================================================================================================================================Install 1 PackageTotal download size: 104 kInstalled size: 366 kIs this ok [y/d/N]: yDownloading packages:sqlite-devel-3.7.17-8.el7.x86_64.rpm                               | 104 kB 00:00:00  Running transaction checkRunning transaction testTransaction test succeededRunning transaction Installing : sqlite-devel-3.7.17-8.el7.x86_64                                 1/1  Verifying : sqlite-devel-3.7.17-8.el7.x86_64                                 1/1 Installed: sqlite-devel.x86_64 0:3.7.17-8.el7                                     Complete!