YouCompleteme only works for stdlib modules

Question

I have a problem relating to YouCompleteMe and Python. When I try to autocomplete standard library packages like os.* everything works. When I try the same with pip installed packages like flask it does not.

I found the same question but no answer here

vim --version prints:

VIM - Vi IMproved 7.4 (2013 Aug 10, compiled Jun 9 2016 09:35:16) Included patches: 1-1910 Compiled by Arch Linux Huge version without GUI. Features included (+) or not (-): +acl +farsi +mouse_netterm +tag_binary +arabic +file_in_path +mouse_sgr +tag_old_static +autocmd +find_in_path -mouse_sysmouse -tag_any_white -balloon_eval +float +mouse_urxvt +tcl/dyn -browse +folding +mouse_xterm +termguicolors ++builtin_terms -footer +multi_byte +terminfo +byte_offset +fork() +multi_lang +termresponse +channel +gettext -mzscheme +textobjects +cindent -hangul_input +netbeans_intg +timers -clientserver +iconv +packages +title -clipboard +insert_expand +path_extra -toolbar +cmdline_compl +job +perl/dyn +user_commands +cmdline_hist +jumplist +persistent_undo +vertsplit +cmdline_info +keymap +postscript +virtualedit +comments +langmap +printer +visual +conceal +libcall +profile +visualextra +cryptv +linebreak +python/dyn +viminfo +cscope +lispindent +python3/dyn +vreplace +cursorbind +listcmds +quickfix +wildignore +cursorshape +localmap +reltime +wildmenu +dialog_con +lua/dyn +rightleft +windows +diff +menu +ruby/dyn +writebackup +digraphs +mksession +scrollbind -X11 -dnd +modify_fname +signs -xfontset -ebcdic +mouse +smartindent -xim +emacs_tags -mouseshape +startuptime -xsmp +eval +mouse_dec +statusline -xterm_clipboard +ex_extra +mouse_gpm -sun_workshop -xterm_save +extra_search -mouse_jsbterm +syntax -xpm system vimrc file: "/etc/vimrc" user vimrc file: "$HOME/.vimrc" 2nd user vimrc file: "~/.vim/vimrc" user exrc file: "$HOME/.exrc" fall-back for $VIM: "/usr/share/vim" Compilation: gcc -c -I. -Iproto -DHAVE_CONFIG_H -D_FORTIFY_SOURCE=2 -march=x86-64 -mtune=generic -O2 -pipe -fstack-protector-strong -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=1
Linking: gcc -L. -Wl,-O1,--sort-common,--as-needed,-z,relro -fstack-protector -rdynamic -Wl,-export-dynamic -Wl,-E -Wl,-rpath,/usr/lib/perl5/core_perl/CORE -Wl,-O1,--sort-common,--as-needed,-z,relro -L/usr/local/lib -Wl,--as-needed -o vim -lm -lncurses -lelf -lnsl -lacl -lattr -lgpm -ldl -Wl,-E -Wl,-rpath,/usr/lib/perl5/core_perl/CORE -Wl,-O1,--sort-common,--as-needed,-z,relro -fstack-protector-strong -L/usr/local/lib -L/usr/lib/perl5/core_perl/CORE -lperl -lpthread -lnsl -ldl -lm -lcrypt -lutil -lc -L/usr/lib -ltclstub8.6 -ldl -lz -lpthread -lieee -lm

Answer 1

add let g:ycm_global_ycm_extra_conf = '~/.vim/.ycm_extra_conf.py' to your .vimrc

copy .ycm_extra_conf.py from https://github.com/Valloric/ycmd/blob/master/cpp/ycm/.ycm_extra_conf.py and move it to ~/.vim/