Use pyarrow and json.dump to save json file in hdfs
I am trying to save json file in HDFS using pyarrow. Here is what my code looks like.
from pyarrow import hdfs
fs = hdfs.connect(driver='libhdfs')
with fs.open(outputFileVal1, 'wb') as fp:
json.dump(list(value1set), fp)
This gives an error saying TypeError: a bytes-like object is required, not 'str'
When I try joblib.dump or pickle.dump instead it works, but it doesn't save in json format. Is there any way to save json file directly to hdfs using pyarrow.
python json hdfs pyarrow
asked Nov 20 at 23:04
emperorspride188
447
add a comment |
I am trying to save json file in HDFS using pyarrow. Here is what my code looks like.
from pyarrow import hdfs
fs = hdfs.connect(driver='libhdfs')
with fs.open(outputFileVal1, 'wb') as fp:
json.dump(list(value1set), fp)
This gives an error saying TypeError: a bytes-like object is required, not 'str'
When I try joblib.dump or pickle.dump instead it works, but it doesn't save in json format. Is there any way to save json file directly to hdfs using pyarrow.
python json hdfs pyarrow
asked Nov 20 at 23:04
emperorspride188
447
add a comment |
I am trying to save json file in HDFS using pyarrow. Here is what my code looks like.
from pyarrow import hdfs
fs = hdfs.connect(driver='libhdfs')
with fs.open(outputFileVal1, 'wb') as fp:
json.dump(list(value1set), fp)
This gives an error saying TypeError: a bytes-like object is required, not 'str'
When I try joblib.dump or pickle.dump instead it works, but it doesn't save in json format. Is there any way to save json file directly to hdfs using pyarrow.
python json hdfs pyarrow
asked Nov 20 at 23:04
emperorspride188
447
I am trying to save json file in HDFS using pyarrow. Here is what my code looks like.
from pyarrow import hdfs
fs = hdfs.connect(driver='libhdfs')
with fs.open(outputFileVal1, 'wb') as fp:
json.dump(list(value1set), fp)
This gives an error saying TypeError: a bytes-like object is required, not 'str'
When I try joblib.dump or pickle.dump instead it works, but it doesn't save in json format. Is there any way to save json file directly to hdfs using pyarrow.
python json hdfs pyarrow
python json hdfs pyarrow
asked Nov 20 at 23:04
emperorspride188
447
asked Nov 20 at 23:04
emperorspride188
447
asked Nov 20 at 23:04
emperorspride188
447
asked Nov 20 at 23:04
emperorspride188
447
asked Nov 20 at 23:04
emperorspride188
447
447
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
Looks like you may need to use a wrapper that will encode the data written by json.dump to binary, using chunk.encode('utf8'). Something like
class Utf8Encoder(object);
def __init__(self, fp):
self.fp = fp
def write(self, data):
if not isinstance(data, bytes):
data = data.encode('utf-8')
self.fp.write(data)
Then you can write
json.dump(..., UtfEncoder(fp))
answered Nov 21 at 17:34
Wes McKinney
53.9k1810992
add a comment |
Your Answer
StackExchange.ifUsing("editor", function () {
StackExchange.using("externalEditor", function () {
StackExchange.using("snippets", function () {
StackExchange.snippets.init();
});
});
}, "code-snippets");
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});
function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53402930%2fuse-pyarrow-and-json-dump-to-save-json-file-in-hdfs%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
Looks like you may need to use a wrapper that will encode the data written by json.dump to binary, using chunk.encode('utf8'). Something like
class Utf8Encoder(object);
def __init__(self, fp):
self.fp = fp
def write(self, data):
if not isinstance(data, bytes):
data = data.encode('utf-8')
self.fp.write(data)
Then you can write
json.dump(..., UtfEncoder(fp))
answered Nov 21 at 17:34
Wes McKinney
53.9k1810992
add a comment |
Looks like you may need to use a wrapper that will encode the data written by json.dump to binary, using chunk.encode('utf8'). Something like
class Utf8Encoder(object);
def __init__(self, fp):
self.fp = fp
def write(self, data):
if not isinstance(data, bytes):
data = data.encode('utf-8')
self.fp.write(data)
Then you can write
json.dump(..., UtfEncoder(fp))
answered Nov 21 at 17:34
Wes McKinney
53.9k1810992
add a comment |
Looks like you may need to use a wrapper that will encode the data written by json.dump to binary, using chunk.encode('utf8'). Something like
class Utf8Encoder(object);
def __init__(self, fp):
self.fp = fp
def write(self, data):
if not isinstance(data, bytes):
data = data.encode('utf-8')
self.fp.write(data)
Then you can write
json.dump(..., UtfEncoder(fp))
answered Nov 21 at 17:34
Wes McKinney
53.9k1810992
Looks like you may need to use a wrapper that will encode the data written by json.dump to binary, using chunk.encode('utf8'). Something like
class Utf8Encoder(object);
def __init__(self, fp):
self.fp = fp
def write(self, data):
if not isinstance(data, bytes):
data = data.encode('utf-8')
self.fp.write(data)
Then you can write
json.dump(..., UtfEncoder(fp))
answered Nov 21 at 17:34
Wes McKinney
53.9k1810992
answered Nov 21 at 17:34
Wes McKinney
53.9k1810992
answered Nov 21 at 17:34
Wes McKinney
53.9k1810992
answered Nov 21 at 17:34
Wes McKinney
53.9k1810992
53.9k1810992
add a comment |
add a comment |
Thanks for contributing an answer to Stack Overflow!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Some of your past answers have not been well-received, and you're in danger of being blocked from answering.
Please pay close attention to the following guidance:
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53402930%2fuse-pyarrow-and-json-dump-to-save-json-file-in-hdfs%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
